---
_id: '55403'
abstract:
- lang: eng
text: In this paper we consider the interactive processes by which an explainer
and an explainee cooperate to produce an explanation, which we refer to as co-construction.
Explainable Artificial Intelligence (XAI) is concerned with the development of
intelligent systems and robots that can explain and justify their actions, decisions,
recommendations, and so on. However, the cooperative construction of explanations
remains a key but under-explored issue. This short paper proposes an architecture
for intelligent systems that promotes a co-constructive and interactive approach
to explanation generation. By outlining its basic components and their specific
roles, we aim to contribute to the advancement of XAI computational frameworks
that actively engage users in the explanation process.
author:
- first_name: Hendrik
full_name: Buschmeier, Hendrik
id: '76456'
last_name: Buschmeier
orcid: 0000-0002-9613-5713
- first_name: Philipp
full_name: Cimiano, Philipp
last_name: Cimiano
- first_name: Stefan
full_name: Kopp, Stefan
last_name: Kopp
- first_name: Jaroslaw
full_name: Kornowicz, Jaroslaw
id: '44029'
last_name: Kornowicz
orcid: 0000-0002-5654-9911
- first_name: Olesja
full_name: Lammert, Olesja
id: '47384'
last_name: Lammert
orcid: 0000-0001-8201-5166
- first_name: Marco
full_name: Matarese, Marco
last_name: Matarese
- first_name: Dimitry
full_name: Mindlin, Dimitry
last_name: Mindlin
- first_name: Amelie Sophie
full_name: Robrecht, Amelie Sophie
last_name: Robrecht
- first_name: Anna-Lisa
full_name: Vollmer, Anna-Lisa
id: '86589'
last_name: Vollmer
- first_name: Petra
full_name: Wagner, Petra
id: '74505'
last_name: Wagner
- first_name: Britta
full_name: Wrede, Britta
last_name: Wrede
- first_name: Meisam
full_name: Booshehri, Meisam
id: '93424'
last_name: Booshehri
citation:
ama: 'Buschmeier H, Cimiano P, Kopp S, et al. Towards a Computational Architecture
for Co-Constructive Explainable Systems. In: Proceedings of the 2024 Workshop
on Explainability Engineering. ACM; 2024:20-25. doi:10.1145/3648505.3648509'
apa: Buschmeier, H., Cimiano, P., Kopp, S., Kornowicz, J., Lammert, O., Matarese,
M., Mindlin, D., Robrecht, A. S., Vollmer, A.-L., Wagner, P., Wrede, B., &
Booshehri, M. (2024). Towards a Computational Architecture for Co-Constructive
Explainable Systems. Proceedings of the 2024 Workshop on Explainability Engineering,
20–25. https://doi.org/10.1145/3648505.3648509
bibtex: '@inproceedings{Buschmeier_Cimiano_Kopp_Kornowicz_Lammert_Matarese_Mindlin_Robrecht_Vollmer_Wagner_et
al._2024, title={Towards a Computational Architecture for Co-Constructive Explainable
Systems}, DOI={10.1145/3648505.3648509},
booktitle={Proceedings of the 2024 Workshop on Explainability Engineering}, publisher={ACM},
author={Buschmeier, Hendrik and Cimiano, Philipp and Kopp, Stefan and Kornowicz,
Jaroslaw and Lammert, Olesja and Matarese, Marco and Mindlin, Dimitry and Robrecht,
Amelie Sophie and Vollmer, Anna-Lisa and Wagner, Petra and et al.}, year={2024},
pages={20–25} }'
chicago: Buschmeier, Hendrik, Philipp Cimiano, Stefan Kopp, Jaroslaw Kornowicz,
Olesja Lammert, Marco Matarese, Dimitry Mindlin, et al. “Towards a Computational
Architecture for Co-Constructive Explainable Systems.” In Proceedings of the
2024 Workshop on Explainability Engineering, 20–25. ACM, 2024. https://doi.org/10.1145/3648505.3648509.
ieee: 'H. Buschmeier et al., “Towards a Computational Architecture for Co-Constructive
Explainable Systems,” in Proceedings of the 2024 Workshop on Explainability
Engineering, Lisbon, Portugal, 2024, pp. 20–25, doi: 10.1145/3648505.3648509.'
mla: Buschmeier, Hendrik, et al. “Towards a Computational Architecture for Co-Constructive
Explainable Systems.” Proceedings of the 2024 Workshop on Explainability Engineering,
ACM, 2024, pp. 20–25, doi:10.1145/3648505.3648509.
short: 'H. Buschmeier, P. Cimiano, S. Kopp, J. Kornowicz, O. Lammert, M. Matarese,
D. Mindlin, A.S. Robrecht, A.-L. Vollmer, P. Wagner, B. Wrede, M. Booshehri, in:
Proceedings of the 2024 Workshop on Explainability Engineering, ACM, 2024, pp.
20–25.'
conference:
location: Lisbon, Portugal
name: 2024 Workshop on Explainability Engineering
date_created: 2024-07-26T11:57:31Z
date_updated: 2025-03-14T19:24:35Z
department:
- _id: '184'
- _id: '178'
- _id: '660'
doi: 10.1145/3648505.3648509
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 20-25
project:
- _id: '125'
name: 'TRR 318 - C2: TRR 318 - Subproject C2'
- _id: '113'
name: 'TRR 318 - A3: TRR 318 - Subproject A3'
- _id: '112'
grant_number: '438445824'
name: 'TRR 318 - A02: TRR 318 - Verstehensprozess einer Erklärung beobachten und
auswerten (Teilprojekt A02)'
- _id: '118'
name: 'TRR 318 - INF: TRR 318 - Project Area INF'
publication: Proceedings of the 2024 Workshop on Explainability Engineering
publication_status: published
publisher: ACM
quality_controlled: '1'
status: public
title: Towards a Computational Architecture for Co-Constructive Explainable Systems
type: conference
user_id: '44029'
year: '2024'
...
---
_id: '59132'
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Jonas
full_name: Beutelspacher, Jonas
id: '92911'
last_name: Beutelspacher
- first_name: Christian Lennart
full_name: Elsner, Christian Lennart
id: '70729'
last_name: Elsner
citation:
ama: Moritzer E, Beutelspacher J, Elsner CL. Investigation of the weld seam quality
of particle filled polymers in the fused filament fabrication process. Polymer
Composites. Published online 2024. doi:10.1002/pc.29101
apa: Moritzer, E., Beutelspacher, J., & Elsner, C. L. (2024). Investigation
of the weld seam quality of particle filled polymers in the fused filament fabrication
process. Polymer Composites. https://doi.org/10.1002/pc.29101
bibtex: '@article{Moritzer_Beutelspacher_Elsner_2024, title={Investigation of the
weld seam quality of particle filled polymers in the fused filament fabrication
process}, DOI={10.1002/pc.29101},
journal={Polymer Composites}, author={Moritzer, Elmar and Beutelspacher, Jonas
and Elsner, Christian Lennart}, year={2024} }'
chicago: Moritzer, Elmar, Jonas Beutelspacher, and Christian Lennart Elsner. “Investigation
of the Weld Seam Quality of Particle Filled Polymers in the Fused Filament Fabrication
Process.” Polymer Composites, 2024. https://doi.org/10.1002/pc.29101.
ieee: 'E. Moritzer, J. Beutelspacher, and C. L. Elsner, “Investigation of the weld
seam quality of particle filled polymers in the fused filament fabrication process,”
Polymer Composites, 2024, doi: 10.1002/pc.29101.'
mla: Moritzer, Elmar, et al. “Investigation of the Weld Seam Quality of Particle
Filled Polymers in the Fused Filament Fabrication Process.” Polymer Composites,
2024, doi:10.1002/pc.29101.
short: E. Moritzer, J. Beutelspacher, C.L. Elsner, Polymer Composites (2024).
date_created: 2025-03-25T10:18:06Z
date_updated: 2025-03-27T10:55:25Z
department:
- _id: '9'
- _id: '321'
- _id: '624'
- _id: '367'
doi: 10.1002/pc.29101
keyword:
- Filled polymers
- Fused Filament Fabrication
- weld seam quality
- weld seam strength
language:
- iso: eng
publication: Polymer Composites
quality_controlled: '1'
status: public
title: Investigation of the weld seam quality of particle filled polymers in the fused
filament fabrication process
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '59135'
abstract:
- lang: eng
text: Compounding is an important step in processing base polymers and is used to
incorporate various additives into a polymer. For this purpose, different screw
elements are used for dispersive and distributive mixing on a co-rotating twin-screw
extruder. Optimising the screw configuration requires precise knowledge of the
screw elements’ mixing properties, which have not been thoroughly investigated.
This study analyses the mixing behaviour of individual screw elements regarding
dispersive and distributive mixing using 3D CFD flow simulations with subsequent
particle tracking. For distributive mixing, the particle distribution behind the
screw elements in the XY plane is analysed and the mixing index MQ, which relates
the standard deviation and the mean value of the triangular areas between the
particles, is calculated. For dispersive mixing, the maximum shear stress on the
particle path and the integral of the shear stress over the residence time of
each individual particle are determined. The results show that screw element geometry
and rotation speed have a significant influence on dispersive and distributive
mixing. In addition, better dispersive mixing is achievable with highly viscous
materials. These findings enable the optimisation of the mixing zone of a co-rotating
twin-screw extruder for the efficient mixing of mineral fillers.
author:
- first_name: Jan Philipp
full_name: Oldemeier, Jan Philipp
id: '56781'
last_name: Oldemeier
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
citation:
ama: Oldemeier JP, Schöppner V. Analysis of the Dispersive and Distributive Mixing
Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle
Tracking. Polymers. 2024;16(21). doi:10.3390/polym16212952
apa: Oldemeier, J. P., & Schöppner, V. (2024). Analysis of the Dispersive and
Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
with Particle Tracking. Polymers, 16(21). https://doi.org/10.3390/polym16212952
bibtex: '@article{Oldemeier_Schöppner_2024, title={Analysis of the Dispersive and
Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
with Particle Tracking}, volume={16}, DOI={10.3390/polym16212952},
number={21}, journal={Polymers}, author={Oldemeier, Jan Philipp and Schöppner,
Volker}, year={2024} }'
chicago: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive
and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw
Extruder with Particle Tracking.” Polymers 16, no. 21 (2024). https://doi.org/10.3390/polym16212952.
ieee: 'J. P. Oldemeier and V. Schöppner, “Analysis of the Dispersive and Distributive
Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle
Tracking,” Polymers, vol. 16, no. 21, 2024, doi: 10.3390/polym16212952.'
mla: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive and
Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder
with Particle Tracking.” Polymers, vol. 16, no. 21, 2024, doi:10.3390/polym16212952.
short: J.P. Oldemeier, V. Schöppner, Polymers 16 (2024).
date_created: 2025-03-25T10:19:50Z
date_updated: 2025-03-27T12:56:35Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
doi: 10.3390/polym16212952
intvolume: ' 16'
issue: '21'
keyword:
- Compoundieren
- disperses Mischen
- distributives Mischen
- Schneckenelemente
language:
- iso: eng
publication: Polymers
quality_controlled: '1'
status: public
title: Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements
on the Co-Rotating Twin-Screw Extruder with Particle Tracking
type: journal_article
user_id: '59363'
volume: 16
year: '2024'
...
---
_id: '59101'
author:
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: Theresa
full_name: Arndt, Theresa
id: '45302'
last_name: Arndt
citation:
ama: 'Schöppner V, Arndt T. Development of scale-up rules for the quasi-simultaneous
laser transmission welding (LTW) of thermoplastics. In: Proceedings A-C, ed. The
2nd International Symposium on Plastics Technology. Vol 355. {AIP Publishing};
2024.'
apa: Schöppner, V., & Arndt, T. (2024). Development of scale-up rules for the
quasi-simultaneous laser transmission welding (LTW) of thermoplastics. In A.-C.
Proceedings (Ed.), The 2nd International Symposium on Plastics Technology
(Vol. 355). {AIP Publishing}.
bibtex: '@inproceedings{Schöppner_Arndt_2024, title={Development of scale-up rules
for the quasi-simultaneous laser transmission welding (LTW) of thermoplastics},
volume={355}, booktitle={The 2nd International Symposium on Plastics Technology},
publisher={{AIP Publishing}}, author={Schöppner, Volker and Arndt, Theresa}, editor={Proceedings,
AIP-Conference}, year={2024} }'
chicago: Schöppner, Volker, and Theresa Arndt. “Development of Scale-up Rules for
the Quasi-Simultaneous Laser Transmission Welding (LTW) of Thermoplastics.” In
The 2nd International Symposium on Plastics Technology, edited by AIP-Conference
Proceedings, Vol. 355. {AIP Publishing}, 2024.
ieee: V. Schöppner and T. Arndt, “Development of scale-up rules for the quasi-simultaneous
laser transmission welding (LTW) of thermoplastics,” in The 2nd International
Symposium on Plastics Technology, 2024, vol. 355.
mla: Schöppner, Volker, and Theresa Arndt. “Development of Scale-up Rules for the
Quasi-Simultaneous Laser Transmission Welding (LTW) of Thermoplastics.” The
2nd International Symposium on Plastics Technology, edited by AIP-Conference
Proceedings, vol. 355, {AIP Publishing}, 2024.
short: 'V. Schöppner, T. Arndt, in: A.-C. Proceedings (Ed.), The 2nd International
Symposium on Plastics Technology, {AIP Publishing}, 2024.'
date_created: 2025-03-25T08:59:37Z
date_updated: 2025-03-27T13:01:36Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
editor:
- first_name: AIP-Conference
full_name: Proceedings, AIP-Conference
last_name: Proceedings
intvolume: ' 355'
language:
- iso: eng
publication: The 2nd International Symposium on Plastics Technology
publication_identifier:
isbn:
- '9780735448452'
publisher: '{AIP Publishing}'
quality_controlled: '1'
status: public
title: Development of scale-up rules for the quasi-simultaneous laser transmission
welding (LTW) of thermoplastics
type: conference
user_id: '59363'
volume: 355
year: '2024'
...
---
_id: '59129'
author:
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: Dorte
full_name: Trienens, Dorte
id: '44116'
last_name: Trienens
- first_name: Thomas
full_name: Bäck, Thomas
last_name: Bäck
- first_name: Seraphin
full_name: Tsi-Nda Lontsi, Seraphin
last_name: Tsi-Nda Lontsi
- first_name: Peter
full_name: Krause, Peter
last_name: Krause
- first_name: Finn
full_name: Budde, Finn
last_name: Budde
citation:
ama: Schöppner V, Trienens D, Bäck T, Tsi-Nda Lontsi S, Krause P, Budde F. Method
Development for the Prediction of Melt Quality in the Extrusion Process. Polymers.
2024;16(9):1197. doi:10.3390/polym16091197
apa: Schöppner, V., Trienens, D., Bäck, T., Tsi-Nda Lontsi, S., Krause, P., &
Budde, F. (2024). Method Development for the Prediction of Melt Quality in the
Extrusion Process. Polymers, 16(9), 1197. https://doi.org/10.3390/polym16091197
bibtex: '@article{Schöppner_Trienens_Bäck_Tsi-Nda Lontsi_Krause_Budde_2024, title={Method
Development for the Prediction of Melt Quality in the Extrusion Process}, volume={16},
DOI={10.3390/polym16091197},
number={9}, journal={Polymers}, author={Schöppner, Volker and Trienens, Dorte
and Bäck, Thomas and Tsi-Nda Lontsi, Seraphin and Krause, Peter and Budde, Finn},
year={2024}, pages={1197} }'
chicago: 'Schöppner, Volker, Dorte Trienens, Thomas Bäck, Seraphin Tsi-Nda Lontsi,
Peter Krause, and Finn Budde. “Method Development for the Prediction of Melt Quality
in the Extrusion Process.” Polymers 16, no. 9 (2024): 1197. https://doi.org/10.3390/polym16091197.'
ieee: 'V. Schöppner, D. Trienens, T. Bäck, S. Tsi-Nda Lontsi, P. Krause, and F.
Budde, “Method Development for the Prediction of Melt Quality in the Extrusion
Process,” Polymers, vol. 16, no. 9, p. 1197, 2024, doi: 10.3390/polym16091197.'
mla: Schöppner, Volker, et al. “Method Development for the Prediction of Melt Quality
in the Extrusion Process.” Polymers, vol. 16, no. 9, 2024, p. 1197, doi:10.3390/polym16091197.
short: V. Schöppner, D. Trienens, T. Bäck, S. Tsi-Nda Lontsi, P. Krause, F. Budde,
Polymers 16 (2024) 1197.
date_created: 2025-03-25T09:54:32Z
date_updated: 2025-03-27T12:55:38Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
doi: 10.3390/polym16091197
intvolume: ' 16'
issue: '9'
language:
- iso: eng
page: '1197'
publication: Polymers
quality_controlled: '1'
status: public
title: Method Development for the Prediction of Melt Quality in the Extrusion Process
type: journal_article
user_id: '59363'
volume: 16
year: '2024'
...
---
_id: '59134'
author:
- first_name: Laura
full_name: Austermeier, Laura
id: '45326'
last_name: Austermeier
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
citation:
ama: Austermeier L, Schöppner V. Load Differences between the Screws in the Solids
Conveying Zone of Co-Rotating Twin-Screw Extruders. 37th International Conference
of the Polymer Processing Society. Published online 2024.
apa: Austermeier, L., & Schöppner, V. (2024). Load Differences between the Screws
in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders. 37th International
Conference of the Polymer Processing Society.
bibtex: '@article{Austermeier_Schöppner_2024, title={Load Differences between the
Screws in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders}, journal={37th
International Conference of the Polymer Processing Society}, author={Austermeier,
Laura and Schöppner, Volker}, year={2024} }'
chicago: Austermeier, Laura, and Volker Schöppner. “Load Differences between the
Screws in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders.” 37th
International Conference of the Polymer Processing Society, 2024.
ieee: L. Austermeier and V. Schöppner, “Load Differences between the Screws in the
Solids Conveying Zone of Co-Rotating Twin-Screw Extruders,” 37th International
Conference of the Polymer Processing Society, 2024.
mla: Austermeier, Laura, and Volker Schöppner. “Load Differences between the Screws
in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders.” 37th International
Conference of the Polymer Processing Society, 2024.
short: L. Austermeier, V. Schöppner, 37th International Conference of the Polymer
Processing Society (2024).
date_created: 2025-03-25T10:19:50Z
date_updated: 2025-03-27T12:56:06Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- Compoundieren
- Doppelschneckenextruder
- Drehmoment
- Energieeintrag
- Feststoffförderung
- Schneckenelemente
language:
- iso: eng
publication: 37th International Conference of the Polymer Processing Society
quality_controlled: '1'
status: public
title: Load Differences between the Screws in the Solids Conveying Zone of Co-Rotating
Twin-Screw Extruders
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '59103'
author:
- first_name: Karina
full_name: Gevers, Karina
id: '83151'
last_name: Gevers
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: A.
full_name: Seefried, A.
last_name: Seefried
- first_name: M.
full_name: Gehde, M.
last_name: Gehde
- first_name: M.
full_name: Albrecht, M.
last_name: Albrecht
citation:
ama: Gevers K, Schöppner V, Seefried A, Gehde M, Albrecht M. Influences of the convective
heating on the material damage to plastics during hot gas series welding. Joining
Plastics. 2024;18(2):108.
apa: Gevers, K., Schöppner, V., Seefried, A., Gehde, M., & Albrecht, M. (2024).
Influences of the convective heating on the material damage to plastics during
hot gas series welding. Joining Plastics, 18(2), 108.
bibtex: '@article{Gevers_Schöppner_Seefried_Gehde_Albrecht_2024, title={Influences
of the convective heating on the material damage to plastics during hot gas series
welding}, volume={18}, number={2}, journal={Joining Plastics}, author={Gevers,
Karina and Schöppner, Volker and Seefried, A. and Gehde, M. and Albrecht, M.},
year={2024}, pages={108} }'
chicago: 'Gevers, Karina, Volker Schöppner, A. Seefried, M. Gehde, and M. Albrecht.
“Influences of the Convective Heating on the Material Damage to Plastics during
Hot Gas Series Welding.” Joining Plastics 18, no. 2 (2024): 108.'
ieee: K. Gevers, V. Schöppner, A. Seefried, M. Gehde, and M. Albrecht, “Influences
of the convective heating on the material damage to plastics during hot gas series
welding,” Joining Plastics, vol. 18, no. 2, p. 108, 2024.
mla: Gevers, Karina, et al. “Influences of the Convective Heating on the Material
Damage to Plastics during Hot Gas Series Welding.” Joining Plastics, vol.
18, no. 2, 2024, p. 108.
short: K. Gevers, V. Schöppner, A. Seefried, M. Gehde, M. Albrecht, Joining Plastics
18 (2024) 108.
date_created: 2025-03-25T08:59:37Z
date_updated: 2025-03-27T13:03:39Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
intvolume: ' 18'
issue: '2'
language:
- iso: eng
page: '108'
publication: Joining Plastics
quality_controlled: '1'
status: public
title: Influences of the convective heating on the material damage to plastics during
hot gas series welding
type: journal_article
user_id: '59363'
volume: 18
year: '2024'
...
---
_id: '59105'
author:
- first_name: Karina
full_name: Gevers, Karina
id: '83151'
last_name: Gevers
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: L.
full_name: Schraa, L.
last_name: Schraa
- first_name: P.
full_name: Toews, P.
last_name: Toews
- first_name: J.
full_name: Decker, J.
last_name: Decker
- first_name: K.
full_name: Uhlig, K.
last_name: Uhlig
- first_name: Michael
full_name: Stommel, Michael
last_name: Stommel
citation:
ama: Gevers K, Schöppner V, Schraa L, et al. Effects of different heating strategies
on the joint properties during infrared welding of glass fiber reinforced polyamide
6. Welding in the World. Published online 2024.
apa: Gevers, K., Schöppner, V., Schraa, L., Toews, P., Decker, J., Uhlig, K., &
Stommel, M. (2024). Effects of different heating strategies on the joint properties
during infrared welding of glass fiber reinforced polyamide 6. Welding in the
World.
bibtex: '@article{Gevers_Schöppner_Schraa_Toews_Decker_Uhlig_Stommel_2024, title={Effects
of different heating strategies on the joint properties during infrared welding
of glass fiber reinforced polyamide 6}, journal={Welding in the World}, author={Gevers,
Karina and Schöppner, Volker and Schraa, L. and Toews, P. and Decker, J. and Uhlig,
K. and Stommel, Michael}, year={2024} }'
chicago: Gevers, Karina, Volker Schöppner, L. Schraa, P. Toews, J. Decker, K. Uhlig,
and Michael Stommel. “Effects of Different Heating Strategies on the Joint Properties
during Infrared Welding of Glass Fiber Reinforced Polyamide 6.” Welding in
the World, 2024.
ieee: K. Gevers et al., “Effects of different heating strategies on the joint
properties during infrared welding of glass fiber reinforced polyamide 6,” Welding
in the World, 2024.
mla: Gevers, Karina, et al. “Effects of Different Heating Strategies on the Joint
Properties during Infrared Welding of Glass Fiber Reinforced Polyamide 6.” Welding
in the World, 2024.
short: K. Gevers, V. Schöppner, L. Schraa, P. Toews, J. Decker, K. Uhlig, M. Stommel,
Welding in the World (2024).
date_created: 2025-03-25T08:59:38Z
date_updated: 2025-03-27T12:57:37Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
language:
- iso: eng
publication: Welding in the World
quality_controlled: '1'
status: public
title: Effects of different heating strategies on the joint properties during infrared
welding of glass fiber reinforced polyamide 6
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '59133'
author:
- first_name: Laura
full_name: Austermeier, Laura
id: '45326'
last_name: Austermeier
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
citation:
ama: Austermeier L, Schöppner V. The Potential of DEM Simulation for the Prediction
of Torque Differences in the Melting Zone of Co-rotating Twin-Screw Extruders.
Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference. Published
online 2024. doi:10.3217/978-3-99161-020-5
apa: Austermeier, L., & Schöppner, V. (2024). The Potential of DEM Simulation
for the Prediction of Torque Differences in the Melting Zone of Co-rotating Twin-Screw
Extruders. Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference.
https://doi.org/10.3217/978-3-99161-020-5
bibtex: '@article{Austermeier_Schöppner_2024, title={The Potential of DEM Simulation
for the Prediction of Torque Differences in the Melting Zone of Co-rotating Twin-Screw
Extruders}, DOI={10.3217/978-3-99161-020-5},
journal={Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference},
publisher={ DCS Computing GmbH, TU Graz Institut für Prozess- und Partikeltechnik},
author={Austermeier, Laura and Schöppner, Volker}, year={2024} }'
chicago: Austermeier, Laura, and Volker Schöppner. “The Potential of DEM Simulation
for the Prediction of Torque Differences in the Melting Zone of Co-Rotating Twin-Screw
Extruders.” Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference,
2024. https://doi.org/10.3217/978-3-99161-020-5.
ieee: 'L. Austermeier and V. Schöppner, “The Potential of DEM Simulation for the
Prediction of Torque Differences in the Melting Zone of Co-rotating Twin-Screw
Extruders,” Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference,
2024, doi: 10.3217/978-3-99161-020-5.'
mla: Austermeier, Laura, and Volker Schöppner. “The Potential of DEM Simulation
for the Prediction of Torque Differences in the Melting Zone of Co-Rotating Twin-Screw
Extruders.” Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference, DCS
Computing GmbH, TU Graz Institut für Prozess- und Partikeltechnik, 2024, doi:10.3217/978-3-99161-020-5.
short: L. Austermeier, V. Schöppner, Book of Abstracts of the 5th Aspherix(R) &
CFDEM(R) Conference (2024).
date_created: 2025-03-25T10:19:50Z
date_updated: 2025-03-27T13:16:31Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
doi: 10.3217/978-3-99161-020-5
keyword:
- Compoundieren
- Doppelschneckenextruder
- Drehmoment
- Energieeintrag
language:
- iso: eng
publication: Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference
publisher: ' DCS Computing GmbH, TU Graz Institut für Prozess- und Partikeltechnik'
quality_controlled: '1'
status: public
title: The Potential of DEM Simulation for the Prediction of Torque Differences in
the Melting Zone of Co-rotating Twin-Screw Extruders
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '59123'
author:
- first_name: Florian
full_name: Brüning, Florian
id: '72920'
last_name: Brüning
- first_name: Jan
full_name: Landgräber, Jan
id: '64499'
last_name: Landgräber
citation:
ama: 'Brüning F, Landgräber J. Material and process effects on the tribological
behavior of polymer bulk materials. In: Annual Technical Conference of the
Society of Plastics Engineers (ANTEC 2024). ; 2024.'
apa: Brüning, F., & Landgräber, J. (2024). Material and process effects on the
tribological behavior of polymer bulk materials. Annual Technical Conference
of the Society of Plastics Engineers (ANTEC 2024).
bibtex: '@inproceedings{Brüning_Landgräber_2024, title={Material and process effects
on the tribological behavior of polymer bulk materials}, booktitle={Annual Technical
Conference of the Society of Plastics Engineers (ANTEC 2024)}, author={Brüning,
Florian and Landgräber, Jan}, year={2024} }'
chicago: Brüning, Florian, and Jan Landgräber. “Material and Process Effects on
the Tribological Behavior of Polymer Bulk Materials.” In Annual Technical Conference
of the Society of Plastics Engineers (ANTEC 2024), 2024.
ieee: F. Brüning and J. Landgräber, “Material and process effects on the tribological
behavior of polymer bulk materials,” 2024.
mla: Brüning, Florian, and Jan Landgräber. “Material and Process Effects on the
Tribological Behavior of Polymer Bulk Materials.” Annual Technical Conference
of the Society of Plastics Engineers (ANTEC 2024), 2024.
short: 'F. Brüning, J. Landgräber, in: Annual Technical Conference of the Society
of Plastics Engineers (ANTEC 2024), 2024.'
date_created: 2025-03-25T09:54:31Z
date_updated: 2025-03-27T14:51:48Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- extrusion
- Feststoffförderung
- Reibwerte
- Spritzgießen
language:
- iso: eng
publication: Annual Technical Conference of the Society of Plastics Engineers (ANTEC
2024)
quality_controlled: '1'
status: public
title: Material and process effects on the tribological behavior of polymer bulk materials
type: conference
user_id: '59363'
year: '2024'
...
---
_id: '59128'
author:
- first_name: Florian
full_name: Brüning, Florian
id: '72920'
last_name: Brüning
- first_name: Leon
full_name: Schmidt, Leon
id: '63035'
last_name: Schmidt
citation:
ama: 'Brüning F, Schmidt L. Investigation of alternative screw concepts for rubber
extrusion. In: Institut für Kautschuktechnologie e.V. D, ed. 20. Kautschuk-Herbstkolloquium
(KHK). ; 2024.'
apa: Brüning, F., & Schmidt, L. (2024). Investigation of alternative screw concepts
for rubber extrusion. In D. Institut für Kautschuktechnologie e.V. (Ed.), 20.
Kautschuk-Herbstkolloquium (KHK).
bibtex: '@inproceedings{Brüning_Schmidt_2024, title={Investigation of alternative
screw concepts for rubber extrusion}, booktitle={20. Kautschuk-Herbstkolloquium
(KHK)}, author={Brüning, Florian and Schmidt, Leon}, editor={Institut für Kautschuktechnologie
e.V., Deutsches}, year={2024} }'
chicago: Brüning, Florian, and Leon Schmidt. “Investigation of Alternative Screw
Concepts for Rubber Extrusion.” In 20. Kautschuk-Herbstkolloquium (KHK),
edited by Deutsches Institut für Kautschuktechnologie e.V., 2024.
ieee: F. Brüning and L. Schmidt, “Investigation of alternative screw concepts for
rubber extrusion,” in 20. Kautschuk-Herbstkolloquium (KHK), 2024.
mla: Brüning, Florian, and Leon Schmidt. “Investigation of Alternative Screw Concepts
for Rubber Extrusion.” 20. Kautschuk-Herbstkolloquium (KHK), edited by
Deutsches Institut für Kautschuktechnologie e.V., 2024.
short: 'F. Brüning, L. Schmidt, in: D. Institut für Kautschuktechnologie e.V. (Ed.),
20. Kautschuk-Herbstkolloquium (KHK), 2024.'
date_created: 2025-03-25T09:54:32Z
date_updated: 2025-03-27T14:16:15Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
editor:
- first_name: Deutsches
full_name: Institut für Kautschuktechnologie e.V., Deutsches
last_name: Institut für Kautschuktechnologie e.V.
keyword:
- extrusion
- Kautschuk
- Simulation
language:
- iso: eng
publication: 20. Kautschuk-Herbstkolloquium (KHK)
quality_controlled: '1'
status: public
title: Investigation of alternative screw concepts for rubber extrusion
type: conference
user_id: '59363'
year: '2024'
...
---
_id: '59104'
author:
- first_name: Karina
full_name: Gevers, Karina
id: '83151'
last_name: Gevers
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: M.
full_name: Albrecht, M.
last_name: Albrecht
- first_name: Michael
full_name: Gehde, Michael
last_name: Gehde
- first_name: A.
full_name: Seefried, A.
last_name: Seefried
citation:
ama: Gevers K, Schöppner V, Albrecht M, Gehde M, Seefried A. Einfluss der konvektiven
Erwärmung auf die Materialschädigung von Kunststoffen beim Warmgasserienschweißen.
Joining Plastics. Published online 2024:108-114.
apa: Gevers, K., Schöppner, V., Albrecht, M., Gehde, M., & Seefried, A. (2024).
Einfluss der konvektiven Erwärmung auf die Materialschädigung von Kunststoffen
beim Warmgasserienschweißen. Joining Plastics, 108–114.
bibtex: '@article{Gevers_Schöppner_Albrecht_Gehde_Seefried_2024, title={Einfluss
der konvektiven Erwärmung auf die Materialschädigung von Kunststoffen beim Warmgasserienschweißen},
journal={Joining Plastics}, author={Gevers, Karina and Schöppner, Volker and Albrecht,
M. and Gehde, Michael and Seefried, A.}, year={2024}, pages={108–114} }'
chicago: Gevers, Karina, Volker Schöppner, M. Albrecht, Michael Gehde, and A. Seefried.
“Einfluss Der Konvektiven Erwärmung Auf Die Materialschädigung von Kunststoffen
Beim Warmgasserienschweißen.” Joining Plastics, 2024, 108–14.
ieee: K. Gevers, V. Schöppner, M. Albrecht, M. Gehde, and A. Seefried, “Einfluss
der konvektiven Erwärmung auf die Materialschädigung von Kunststoffen beim Warmgasserienschweißen,”
Joining Plastics, pp. 108–114, 2024.
mla: Gevers, Karina, et al. “Einfluss Der Konvektiven Erwärmung Auf Die Materialschädigung
von Kunststoffen Beim Warmgasserienschweißen.” Joining Plastics, 2024,
pp. 108–14.
short: K. Gevers, V. Schöppner, M. Albrecht, M. Gehde, A. Seefried, Joining Plastics
(2024) 108–114.
date_created: 2025-03-25T08:59:38Z
date_updated: 2025-03-27T13:21:30Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
language:
- iso: eng
page: 108-114
publication: Joining Plastics
quality_controlled: '1'
status: public
title: Einfluss der konvektiven Erwärmung auf die Materialschädigung von Kunststoffen
beim Warmgasserienschweißen
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '59122'
author:
- first_name: Florian
full_name: Brüning, Florian
id: '72920'
last_name: Brüning
- first_name: Dennis
full_name: Kleinschmidt, Dennis
id: '40516'
last_name: Kleinschmidt
- first_name: Jonas Dirk Rudolf Helmut
full_name: Petzke, Jonas Dirk Rudolf Helmut
id: '57512'
last_name: Petzke
citation:
ama: 'Brüning F, Kleinschmidt D, Petzke JDRH. Improvement of an alternative method
for the correction of wall slip effects in rheological studies of filled rubber
compounds. In: 39th International Conference of the Polymer Processing Society.
; 2024.'
apa: Brüning, F., Kleinschmidt, D., & Petzke, J. D. R. H. (2024). Improvement
of an alternative method for the correction of wall slip effects in rheological
studies of filled rubber compounds. 39th International Conference of the Polymer
Processing Society.
bibtex: '@inproceedings{Brüning_Kleinschmidt_Petzke_2024, title={Improvement of
an alternative method for the correction of wall slip effects in rheological studies
of filled rubber compounds}, booktitle={39th International Conference of the Polymer
Processing Society}, author={Brüning, Florian and Kleinschmidt, Dennis and Petzke,
Jonas Dirk Rudolf Helmut}, year={2024} }'
chicago: Brüning, Florian, Dennis Kleinschmidt, and Jonas Dirk Rudolf Helmut Petzke.
“Improvement of an Alternative Method for the Correction of Wall Slip Effects
in Rheological Studies of Filled Rubber Compounds.” In 39th International Conference
of the Polymer Processing Society, 2024.
ieee: F. Brüning, D. Kleinschmidt, and J. D. R. H. Petzke, “Improvement of an alternative
method for the correction of wall slip effects in rheological studies of filled
rubber compounds,” 2024.
mla: Brüning, Florian, et al. “Improvement of an Alternative Method for the Correction
of Wall Slip Effects in Rheological Studies of Filled Rubber Compounds.” 39th
International Conference of the Polymer Processing Society, 2024.
short: 'F. Brüning, D. Kleinschmidt, J.D.R.H. Petzke, in: 39th International Conference
of the Polymer Processing Society, 2024.'
date_created: 2025-03-25T09:54:31Z
date_updated: 2025-03-28T10:02:44Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- Rheologie
- Viskosität
- Wandgleiten
language:
- iso: eng
publication: 39th International Conference of the Polymer Processing Society
quality_controlled: '1'
status: public
title: Improvement of an alternative method for the correction of wall slip effects
in rheological studies of filled rubber compounds
type: conference
user_id: '59363'
year: '2024'
...
---
_id: '59126'
author:
- first_name: Jonas Dirk Rudolf Helmut
full_name: Petzke, Jonas Dirk Rudolf Helmut
id: '57512'
last_name: Petzke
- first_name: Florian
full_name: Brüning, Florian
id: '72920'
last_name: Brüning
- first_name: Dennis
full_name: Kleinschmidt, Dennis
id: '40516'
last_name: Kleinschmidt
citation:
ama: 'Petzke JDRH, Brüning F, Kleinschmidt D. Simulative Approach for Predicting
the Heating Behavior of Elastomers in the Solid-State Microwave Heating Process.
In: 39th International Conference of the Polymer Processing Society. ;
2024.'
apa: Petzke, J. D. R. H., Brüning, F., & Kleinschmidt, D. (2024). Simulative
Approach for Predicting the Heating Behavior of Elastomers in the Solid-State
Microwave Heating Process. 39th International Conference of the Polymer Processing
Society.
bibtex: '@inproceedings{Petzke_Brüning_Kleinschmidt_2024, title={Simulative Approach
for Predicting the Heating Behavior of Elastomers in the Solid-State Microwave
Heating Process}, booktitle={39th International Conference of the Polymer Processing
Society}, author={Petzke, Jonas Dirk Rudolf Helmut and Brüning, Florian and Kleinschmidt,
Dennis}, year={2024} }'
chicago: Petzke, Jonas Dirk Rudolf Helmut, Florian Brüning, and Dennis Kleinschmidt.
“Simulative Approach for Predicting the Heating Behavior of Elastomers in the
Solid-State Microwave Heating Process.” In 39th International Conference of
the Polymer Processing Society, 2024.
ieee: J. D. R. H. Petzke, F. Brüning, and D. Kleinschmidt, “Simulative Approach
for Predicting the Heating Behavior of Elastomers in the Solid-State Microwave
Heating Process,” 2024.
mla: Petzke, Jonas Dirk Rudolf Helmut, et al. “Simulative Approach for Predicting
the Heating Behavior of Elastomers in the Solid-State Microwave Heating Process.”
39th International Conference of the Polymer Processing Society, 2024.
short: 'J.D.R.H. Petzke, F. Brüning, D. Kleinschmidt, in: 39th International Conference
of the Polymer Processing Society, 2024.'
date_created: 2025-03-25T09:54:31Z
date_updated: 2025-03-28T10:09:31Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- Kautschuk
- Mikrowelle
- Simulation
- Vulkanisation
language:
- iso: eng
publication: 39th International Conference of the Polymer Processing Society
quality_controlled: '1'
status: public
title: Simulative Approach for Predicting the Heating Behavior of Elastomers in the
Solid-State Microwave Heating Process
type: conference
user_id: '59363'
year: '2024'
...
---
_id: '59243'
abstract:
- lang: eng
text: Most single-screw extruders used in the plastics processing industry are plasticizing
extruders, designed to melt solid pellets or powders within the screw channel
during processing. In many cases, the efficiency of the melting process acts as
the primary throughput-limiting factor. If the material melts too late in the
process, it may not be sufficiently mixed, resulting in substandard product quality.
Accurate prediction of the melting process is therefore essential for efficient
and cost-effective machine design. A practical method for engineers is the modeling
of the melting process using mathematical–physical models that can be solved without
complex numerical methods. These models enable rapid calculations while still
providing sufficient predictive accuracy. This study revisits the modified Tadmor
model by Potente, which describes the melting process and predicts the delay-zone
length, extending from the hopper front edge to the point of melt pool formation.
Based on extensive experimental investigations, this model is adapted by redefining
the flow temperatures at the phase boundary and accounting for surface porosity
at the beginning of the melting zone. Additionally, the effect of variable solid
bed dynamics on model accuracy is examined. Significant model improvements were
achieved by accounting for reduced heat flow into the solid bed due to the porous
surface structure in the solid conveying zone, along with a new assumption for
the flow temperature at the phase boundary between the solid bed and melt film.
author:
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: Florian
full_name: Brüning, Florian
id: '72920'
last_name: Brüning
- first_name: Felix
full_name: Knaup, Felix
id: '45124'
last_name: Knaup
citation:
ama: Schöppner V, Brüning F, Knaup F. Improvement in an Analytical Approach for
Modeling the Melting Process in Single-Screw Extruders. Polymers. 2024;16(22):3130.
doi:10.3390/polym16223130
apa: Schöppner, V., Brüning, F., & Knaup, F. (2024). Improvement in an Analytical
Approach for Modeling the Melting Process in Single-Screw Extruders. Polymers,
16(22), 3130. https://doi.org/10.3390/polym16223130
bibtex: '@article{Schöppner_Brüning_Knaup_2024, title={Improvement in an Analytical
Approach for Modeling the Melting Process in Single-Screw Extruders}, volume={16},
DOI={10.3390/polym16223130},
number={22}, journal={Polymers}, author={Schöppner, Volker and Brüning, Florian
and Knaup, Felix}, year={2024}, pages={3130} }'
chicago: 'Schöppner, Volker, Florian Brüning, and Felix Knaup. “Improvement in an
Analytical Approach for Modeling the Melting Process in Single-Screw Extruders.”
Polymers 16, no. 22 (2024): 3130. https://doi.org/10.3390/polym16223130.'
ieee: 'V. Schöppner, F. Brüning, and F. Knaup, “Improvement in an Analytical Approach
for Modeling the Melting Process in Single-Screw Extruders,” Polymers,
vol. 16, no. 22, p. 3130, 2024, doi: 10.3390/polym16223130.'
mla: Schöppner, Volker, et al. “Improvement in an Analytical Approach for Modeling
the Melting Process in Single-Screw Extruders.” Polymers, vol. 16, no.
22, 2024, p. 3130, doi:10.3390/polym16223130.
short: V. Schöppner, F. Brüning, F. Knaup, Polymers 16 (2024) 3130.
date_created: 2025-04-02T09:51:32Z
date_updated: 2025-04-02T11:21:00Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
doi: 10.3390/polym16223130
intvolume: ' 16'
issue: '22'
keyword:
- delay zone
- extrusion
- melting modeling
language:
- iso: eng
page: '3130'
publication: Polymers
quality_controlled: '1'
status: public
title: Improvement in an Analytical Approach for Modeling the Melting Process in Single-Screw
Extruders
type: journal_article
user_id: '59363'
volume: 16
year: '2024'
...
---
_id: '59269'
abstract:
- lang: eng
text: Ferroelectric materials play a crucial role in a broad range of technologies
due to their unique properties that are deeply connected to the pattern and behavior
of their ferroelectric (FE) domains. Chief among them, barium titanate (BaTiO3;
BTO) sees widespread applications such as in electronics but equally is a ferroelectric
model system for fundamental research, e.g., to study the interplay of such FE
domains, the domain walls (DWs), and their macroscopic properties, owed to BTO’s
multiple and experimentally accessible phase transitions. Here, we employ Second
Harmonic Generation Microscopy (SHGM) to in situ investigate the cubic-to-tetragonal
(at ∼126°C) and the tetragonal-to-orthorhombic (at ∼5°C) phase transition in single-crystalline
BTO via three-dimensional (3D) DW mapping. We demonstrate that SHGM imaging provides
the direct visualization of FE domain switching as well as the domain dynamics
in 3D, shedding light on the interplay of the domain structure and phase transition.
These results allow us to extract the different transition temperatures locally,
to unveil the hysteresis behavior, and to determine the type of phase transition
at play (first/second order) from the recorded SHGM data. The capabilities of
SHGM in uncovering these crucial phenomena can easily be applied to other ferroelectrics
to provide new possibilities for in situ engineering of advanced ferroic devices.
article_number: '154102'
article_type: original
author:
- first_name: Benjamin
full_name: Kirbus, Benjamin
last_name: Kirbus
- first_name: Samuel D.
full_name: Seddon, Samuel D.
last_name: Seddon
- first_name: Iuliia
full_name: Kiseleva, Iuliia
last_name: Kiseleva
- first_name: Elke
full_name: Beyreuther, Elke
last_name: Beyreuther
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: Kirbus B, Seddon SD, Kiseleva I, Beyreuther E, Rüsing M, Eng LM. Probing ferroelectric
phase transitions in barium titanate single crystals via in-situ second harmonic
generation microscopy. Journal of Applied Physics. 2024;136(15). doi:10.1063/5.0237769
apa: Kirbus, B., Seddon, S. D., Kiseleva, I., Beyreuther, E., Rüsing, M., &
Eng, L. M. (2024). Probing ferroelectric phase transitions in barium titanate
single crystals via in-situ second harmonic generation microscopy. Journal
of Applied Physics, 136(15), Article 154102. https://doi.org/10.1063/5.0237769
bibtex: '@article{Kirbus_Seddon_Kiseleva_Beyreuther_Rüsing_Eng_2024, title={Probing
ferroelectric phase transitions in barium titanate single crystals via in-situ
second harmonic generation microscopy}, volume={136}, DOI={10.1063/5.0237769},
number={15154102}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
author={Kirbus, Benjamin and Seddon, Samuel D. and Kiseleva, Iuliia and Beyreuther,
Elke and Rüsing, Michael and Eng, Lukas M.}, year={2024} }'
chicago: Kirbus, Benjamin, Samuel D. Seddon, Iuliia Kiseleva, Elke Beyreuther, Michael
Rüsing, and Lukas M. Eng. “Probing Ferroelectric Phase Transitions in Barium Titanate
Single Crystals via In-Situ Second Harmonic Generation Microscopy.” Journal
of Applied Physics 136, no. 15 (2024). https://doi.org/10.1063/5.0237769.
ieee: 'B. Kirbus, S. D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, and L. M.
Eng, “Probing ferroelectric phase transitions in barium titanate single crystals
via in-situ second harmonic generation microscopy,” Journal of Applied Physics,
vol. 136, no. 15, Art. no. 154102, 2024, doi: 10.1063/5.0237769.'
mla: Kirbus, Benjamin, et al. “Probing Ferroelectric Phase Transitions in Barium
Titanate Single Crystals via In-Situ Second Harmonic Generation Microscopy.” Journal
of Applied Physics, vol. 136, no. 15, 154102, AIP Publishing, 2024, doi:10.1063/5.0237769.
short: B. Kirbus, S.D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, L.M. Eng,
Journal of Applied Physics 136 (2024).
date_created: 2025-04-02T15:57:11Z
date_updated: 2025-04-02T15:59:55Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1063/5.0237769
intvolume: ' 136'
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.1063/5.0237769'
oa: '1'
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Probing ferroelectric phase transitions in barium titanate single crystals
via in-situ second harmonic generation microscopy
type: journal_article
user_id: '22501'
volume: 136
year: '2024'
...
---
_id: '59270'
abstract:
- lang: eng
text: Lithium niobate tantalate (LiNb1−xTaxO3, LNT) solid solutions offer exciting
new possibilities for applications ranging from optics, piezotronics, and electronics
beyond the capabilities of the widely used singular compounds of lithium niobate
(LiNbO3, LN) or lithium tantalate (LiTaO3, LT). Crystal growth of homogeneous
LNT single crystals by the Czochralski method is still challenging. One key aspect
of homogeneous growth is the accurate knowledge of thermal conductivity through
the crystal boule during the growth, which is central to control the crystal growth.
Therefore, the temperature dependent thermal conductivity of pure LN, LT, and
LNT solid solutions, as well as of selected doped LN and LT crystals (Mg, Zn)
was investigated across the temperature range from 300 to 1300 K. The results
that span across the whole composition range can directly be applied for optimizing
growth conditions of both LNT solid solutions as well as doped and undoped LN
and LT crystals.
article_number: '176549'
article_type: original
author:
- first_name: Umar
full_name: Bashir, Umar
last_name: Bashir
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Detlef
full_name: Klimm, Detlef
last_name: Klimm
- first_name: Roberts
full_name: Blukis, Roberts
last_name: Blukis
- first_name: Boris
full_name: Koppitz, Boris
last_name: Koppitz
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: Matthias
full_name: Bickermann, Matthias
last_name: Bickermann
- first_name: Steffen
full_name: Ganschow, Steffen
last_name: Ganschow
citation:
ama: Bashir U, Rüsing M, Klimm D, et al. Thermal conductivity in solid solutions
of lithium niobate tantalate single crystals from 300 K up to 1300 K. Journal
of Alloys and Compounds. 2024;1008. doi:10.1016/j.jallcom.2024.176549
apa: Bashir, U., Rüsing, M., Klimm, D., Blukis, R., Koppitz, B., Eng, L. M., Bickermann,
M., & Ganschow, S. (2024). Thermal conductivity in solid solutions of lithium
niobate tantalate single crystals from 300 K up to 1300 K. Journal of Alloys
and Compounds, 1008, Article 176549. https://doi.org/10.1016/j.jallcom.2024.176549
bibtex: '@article{Bashir_Rüsing_Klimm_Blukis_Koppitz_Eng_Bickermann_Ganschow_2024,
title={Thermal conductivity in solid solutions of lithium niobate tantalate single
crystals from 300 K up to 1300 K}, volume={1008}, DOI={10.1016/j.jallcom.2024.176549},
number={176549}, journal={Journal of Alloys and Compounds}, publisher={Elsevier
BV}, author={Bashir, Umar and Rüsing, Michael and Klimm, Detlef and Blukis, Roberts
and Koppitz, Boris and Eng, Lukas M. and Bickermann, Matthias and Ganschow, Steffen},
year={2024} }'
chicago: Bashir, Umar, Michael Rüsing, Detlef Klimm, Roberts Blukis, Boris Koppitz,
Lukas M. Eng, Matthias Bickermann, and Steffen Ganschow. “Thermal Conductivity
in Solid Solutions of Lithium Niobate Tantalate Single Crystals from 300 K up
to 1300 K.” Journal of Alloys and Compounds 1008 (2024). https://doi.org/10.1016/j.jallcom.2024.176549.
ieee: 'U. Bashir et al., “Thermal conductivity in solid solutions of lithium
niobate tantalate single crystals from 300 K up to 1300 K,” Journal of Alloys
and Compounds, vol. 1008, Art. no. 176549, 2024, doi: 10.1016/j.jallcom.2024.176549.'
mla: Bashir, Umar, et al. “Thermal Conductivity in Solid Solutions of Lithium Niobate
Tantalate Single Crystals from 300 K up to 1300 K.” Journal of Alloys and Compounds,
vol. 1008, 176549, Elsevier BV, 2024, doi:10.1016/j.jallcom.2024.176549.
short: U. Bashir, M. Rüsing, D. Klimm, R. Blukis, B. Koppitz, L.M. Eng, M. Bickermann,
S. Ganschow, Journal of Alloys and Compounds 1008 (2024).
date_created: 2025-04-02T16:00:56Z
date_updated: 2025-04-02T16:02:26Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
doi: 10.1016/j.jallcom.2024.176549
intvolume: ' 1008'
language:
- iso: eng
publication: Journal of Alloys and Compounds
publication_identifier:
issn:
- 0925-8388
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Thermal conductivity in solid solutions of lithium niobate tantalate single
crystals from 300 K up to 1300 K
type: journal_article
user_id: '22501'
volume: 1008
year: '2024'
...
---
_id: '59273'
abstract:
- lang: eng
text: Ferroelectric domain walls (DWs) are promising structures for assembling future
nano-electronic circuit elements on a larger scale since reporting domain wall
currents of up to 1 mA per single DW. One key requirement hereto is their reproducible
manufacturing by gaining preparative control over domain size and domain wall
conductivity (DWC). To date, most works on DWC have focused on exploring the fundamental
electrical properties of individual DWs within single-shot experiments, with an
emphasis on quantifying the origins of DWC. Very few reports exist when it comes
to comparing the DWC properties between two separate DWs, and literally nothing
exists where issues of reproducibility in DWC devices have been addressed. To
fill this gap while facing the challenge of finding guidelines for achieving predictable
DWC performance, we report on a procedure that allows us to reproducibly prepare
single hexagonal domains of a predefined diameter into uniaxial ferroelectric
lithium niobate single crystals of 200 and 300 μm thickness, respectively. We
show that the domain diameter can be controlled with an uncertainty of a few percent.
As-grown DWs are then subjected to a standard procedure of current-limited high-voltage
DWC enhancement, and they repetitively reach a DWC increase of six orders of magnitude.
While all resulting DWs show significantly enhanced DWC values, their individual
current–voltage (I–V) characteristics exhibit different shapes, which can be explained
by variations in their 3D real structure reflecting local heterogeneities by defects,
DW pinning, and surface-near DW inclination.
article_type: original
author:
- first_name: Julius
full_name: Ratzenberger, Julius
last_name: Ratzenberger
- first_name: Iuliia
full_name: Kiseleva, Iuliia
last_name: Kiseleva
- first_name: Boris
full_name: Koppitz, Boris
last_name: Koppitz
- first_name: Elke
full_name: Beyreuther, Elke
last_name: Beyreuther
- first_name: Manuel
full_name: Zahn, Manuel
last_name: Zahn
- first_name: Joshua
full_name: Gössel, Joshua
last_name: Gössel
- first_name: Peter A.
full_name: Hegarty, Peter A.
last_name: Hegarty
- first_name: Zeeshan H.
full_name: Amber, Zeeshan H.
last_name: Amber
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: Ratzenberger J, Kiseleva I, Koppitz B, et al. Toward the reproducible fabrication
of conductive ferroelectric domain walls into lithium niobate bulk single crystals.
Journal of Applied Physics. 2024;136(10):104302. doi:10.1063/5.0219300
apa: Ratzenberger, J., Kiseleva, I., Koppitz, B., Beyreuther, E., Zahn, M., Gössel,
J., Hegarty, P. A., Amber, Z. H., Rüsing, M., & Eng, L. M. (2024). Toward
the reproducible fabrication of conductive ferroelectric domain walls into lithium
niobate bulk single crystals. Journal of Applied Physics, 136(10),
104302. https://doi.org/10.1063/5.0219300
bibtex: '@article{Ratzenberger_Kiseleva_Koppitz_Beyreuther_Zahn_Gössel_Hegarty_Amber_Rüsing_Eng_2024,
title={Toward the reproducible fabrication of conductive ferroelectric domain
walls into lithium niobate bulk single crystals}, volume={136}, DOI={10.1063/5.0219300},
number={10}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
author={Ratzenberger, Julius and Kiseleva, Iuliia and Koppitz, Boris and Beyreuther,
Elke and Zahn, Manuel and Gössel, Joshua and Hegarty, Peter A. and Amber, Zeeshan
H. and Rüsing, Michael and Eng, Lukas M.}, year={2024}, pages={104302} }'
chicago: 'Ratzenberger, Julius, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther,
Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing,
and Lukas M. Eng. “Toward the Reproducible Fabrication of Conductive Ferroelectric
Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal of Applied
Physics 136, no. 10 (2024): 104302. https://doi.org/10.1063/5.0219300.'
ieee: 'J. Ratzenberger et al., “Toward the reproducible fabrication of conductive
ferroelectric domain walls into lithium niobate bulk single crystals,” Journal
of Applied Physics, vol. 136, no. 10, p. 104302, 2024, doi: 10.1063/5.0219300.'
mla: Ratzenberger, Julius, et al. “Toward the Reproducible Fabrication of Conductive
Ferroelectric Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal
of Applied Physics, vol. 136, no. 10, AIP Publishing, 2024, p. 104302, doi:10.1063/5.0219300.
short: J. Ratzenberger, I. Kiseleva, B. Koppitz, E. Beyreuther, M. Zahn, J. Gössel,
P.A. Hegarty, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied Physics 136
(2024) 104302.
date_created: 2025-04-02T16:12:29Z
date_updated: 2025-04-02T16:14:31Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1063/5.0219300
intvolume: ' 136'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.1063/5.0219300'
oa: '1'
page: '104302'
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Toward the reproducible fabrication of conductive ferroelectric domain walls
into lithium niobate bulk single crystals
type: journal_article
user_id: '22501'
volume: 136
year: '2024'
...
---
_id: '59275'
abstract:
- lang: eng
text: Studying and understanding many‐body interactions, particularly electron‐boson
interactions, is essential for a deeper elucidation of fundamental physical phenomena
and the development of novel material functionalities. Here, this aspect is explored
in the weak itinerant ferromagnet LaCo2P2 by means of momentum‐resolved photoelectron
spectroscopy (ARPES) and first‐principles calculations. The detailed ARPES patterns
enable to unveil bulk and surface bands, spin splittings due to Rashba and exchange
interactions, as well as the evolution of bands with temperature, which altogether
creates a solid foundation for theoretical studies. The latter has allowed to
establish the impact of electron‐boson interactions on the electronic structure,
that are reflected in its strong renormalization driven by electron‐magnon interaction
and the emergence of distinctive kinks of surface and bulk electron bands due
to significant electron‐phonon coupling. Our results highlight the distinct impact
of electron‐boson interactions on the electronic structure, particularly on the
itinerant d states. Similar electronic states are observed in the isostructural
iron pnictides, where electron‐boson interactions play a crucial role in the emergence
of superconductivity. It is believed that further studies of material systems
involving both magnetically active d‐ and f‐sublattices will reveal more advanced
phenomena in the bulk and at distinct surfaces, driven by a combination of factors
including Rashba and Kondo effects, exchange magnetism, and electron‐boson interactions.
author:
- first_name: D. Yu.
full_name: Usachov, D. Yu.
last_name: Usachov
- first_name: K.
full_name: Ali, K.
last_name: Ali
- first_name: G.
full_name: Poelchen, G.
last_name: Poelchen
- first_name: M.
full_name: Mende, M.
last_name: Mende
- first_name: S.
full_name: Schulz, S.
last_name: Schulz
- first_name: M.
full_name: Peters, M.
last_name: Peters
- first_name: K.
full_name: Bokai, K.
last_name: Bokai
- first_name: I. Yu.
full_name: Sklyadneva, I. Yu.
last_name: Sklyadneva
- first_name: V.
full_name: Stolyarov, V.
last_name: Stolyarov
- first_name: E. V.
full_name: Chulkov, E. V.
last_name: Chulkov
- first_name: K.
full_name: Kliemt, K.
last_name: Kliemt
- first_name: S.
full_name: Paischer, S.
last_name: Paischer
- first_name: P. A.
full_name: Buczek, P. A.
last_name: Buczek
- first_name: R.
full_name: Heid, R.
last_name: Heid
- first_name: F.
full_name: Hempel, F.
last_name: Hempel
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: A.
full_name: Ernst, A.
last_name: Ernst
- first_name: C.
full_name: Krellner, C.
last_name: Krellner
- first_name: S. V.
full_name: Eremeev, S. V.
last_name: Eremeev
- first_name: D. V.
full_name: Vyalikh, D. V.
last_name: Vyalikh
citation:
ama: Usachov DYu, Ali K, Poelchen G, et al. Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2. Advanced Physics Research.
Published online 2024. doi:10.1002/apxr.202400137
apa: Usachov, D. Yu., Ali, K., Poelchen, G., Mende, M., Schulz, S., Peters, M.,
Bokai, K., Sklyadneva, I. Yu., Stolyarov, V., Chulkov, E. V., Kliemt, K., Paischer,
S., Buczek, P. A., Heid, R., Hempel, F., Rüsing, M., Ernst, A., Krellner, C.,
Eremeev, S. V., & Vyalikh, D. V. (2024). Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2. Advanced Physics Research.
https://doi.org/10.1002/apxr.202400137
bibtex: '@article{Usachov_Ali_Poelchen_Mende_Schulz_Peters_Bokai_Sklyadneva_Stolyarov_Chulkov_et
al._2024, title={Unveiling Electron‐Phonon and Electron‐Magnon Interactions in
the Weak Itinerant Ferromagnet LaCo2P2}, DOI={10.1002/apxr.202400137},
journal={Advanced Physics Research}, publisher={Wiley}, author={Usachov, D. Yu.
and Ali, K. and Poelchen, G. and Mende, M. and Schulz, S. and Peters, M. and Bokai,
K. and Sklyadneva, I. Yu. and Stolyarov, V. and Chulkov, E. V. and et al.}, year={2024}
}'
chicago: Usachov, D. Yu., K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K.
Bokai, et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the
Weak Itinerant Ferromagnet LaCo2P2.” Advanced Physics Research, 2024. https://doi.org/10.1002/apxr.202400137.
ieee: 'D. Yu. Usachov et al., “Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2,” Advanced Physics Research,
2024, doi: 10.1002/apxr.202400137.'
mla: Usachov, D. Yu., et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions
in the Weak Itinerant Ferromagnet LaCo2P2.” Advanced Physics Research,
Wiley, 2024, doi:10.1002/apxr.202400137.
short: D.Yu. Usachov, K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K. Bokai,
I.Yu. Sklyadneva, V. Stolyarov, E.V. Chulkov, K. Kliemt, S. Paischer, P.A. Buczek,
R. Heid, F. Hempel, M. Rüsing, A. Ernst, C. Krellner, S.V. Eremeev, D.V. Vyalikh,
Advanced Physics Research (2024).
date_created: 2025-04-02T16:18:56Z
date_updated: 2025-04-02T16:20:41Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1002/apxr.202400137
language:
- iso: eng
publication: Advanced Physics Research
publication_identifier:
issn:
- 2751-1200
- 2751-1200
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the Weak Itinerant
Ferromagnet LaCo2P2
type: journal_article
user_id: '22501'
year: '2024'
...
---
_id: '54967'
abstract:
- lang: eng
text: 'Ferroelectric domain wall conductivity (DWC) is an intriguing and
promising functional property that can be elegantly controlled and steered through
a variety of external stimuli such as electric and mechanical fields. Optical-field
control, as a noninvasive and flexible tool, has rarely been applied so far, but
it significantly expands the possibility for both tuning and probing DWC. On the
one hand, as known from second-harmonic or Raman micro-spectroscopy, the optical
approach provides information on DW distribution and inclination, while simultaneously
probing the DW vibrational modes; on the other hand, photons might be applied
to directly generate charge carriers, thereby acting as a functional and spectrally
tunable probe to deduce the local absorption properties and bandgaps of conductive
DWs. Here, we report on investigating the photo-induced DWC (PI-DWC) of three
lithium niobate crystals, containing a very different number of DWs, namely: (A)
none, (B) one, and (C) many conductive DWs. All three samples are inspected for
their current–voltage behavior in darkness and for different illumination wavelengths
swept from 500 nm down to 310 nm. All samples show their maximum PI-DWC at 310 nm;
moreover, sample (C) reaches PI-DWCs of several microampere. Interestingly, a
noticeable PI-DWC is also observed for sub-bandgap illumination, hinting toward
the existence and decisive role of electronic in-gap states that contribute to
the electronic charge transport along DWs. Finally, complementary conductive atomic
force microscopy investigations under illumination proved that the PI-DWC indeed
is confined to the DW area and does not originate from photo-induced bulk conductivity.'
article_type: original
author:
- first_name: L. L.
full_name: Ding, L. L.
last_name: Ding
- first_name: E.
full_name: Beyreuther, E.
last_name: Beyreuther
- first_name: B.
full_name: Koppitz, B.
last_name: Koppitz
- first_name: K.
full_name: Kempf, K.
last_name: Kempf
- first_name: J. H.
full_name: Ren, J. H.
last_name: Ren
- first_name: W. J.
full_name: Chen, W. J.
last_name: Chen
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Y.
full_name: Zheng, Y.
last_name: Zheng
- first_name: L. M.
full_name: Eng, L. M.
last_name: Eng
citation:
ama: Ding LL, Beyreuther E, Koppitz B, et al. Comparative study of photo-induced
electronic transport along ferroelectric domain walls in lithium niobate single
crystals. Applied Physics Letters. 2024;124(25). doi:10.1063/5.0205877
apa: Ding, L. L., Beyreuther, E., Koppitz, B., Kempf, K., Ren, J. H., Chen, W. J.,
Rüsing, M., Zheng, Y., & Eng, L. M. (2024). Comparative study of photo-induced
electronic transport along ferroelectric domain walls in lithium niobate single
crystals. Applied Physics Letters, 124(25). https://doi.org/10.1063/5.0205877
bibtex: '@article{Ding_Beyreuther_Koppitz_Kempf_Ren_Chen_Rüsing_Zheng_Eng_2024,
title={Comparative study of photo-induced electronic transport along ferroelectric
domain walls in lithium niobate single crystals}, volume={124}, DOI={10.1063/5.0205877},
number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ding,
L. L. and Beyreuther, E. and Koppitz, B. and Kempf, K. and Ren, J. H. and Chen,
W. J. and Rüsing, Michael and Zheng, Y. and Eng, L. M.}, year={2024} }'
chicago: Ding, L. L., E. Beyreuther, B. Koppitz, K. Kempf, J. H. Ren, W. J. Chen,
Michael Rüsing, Y. Zheng, and L. M. Eng. “Comparative Study of Photo-Induced Electronic
Transport along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.”
Applied Physics Letters 124, no. 25 (2024). https://doi.org/10.1063/5.0205877.
ieee: 'L. L. Ding et al., “Comparative study of photo-induced electronic
transport along ferroelectric domain walls in lithium niobate single crystals,”
Applied Physics Letters, vol. 124, no. 25, 2024, doi: 10.1063/5.0205877.'
mla: Ding, L. L., et al. “Comparative Study of Photo-Induced Electronic Transport
along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.” Applied
Physics Letters, vol. 124, no. 25, AIP Publishing, 2024, doi:10.1063/5.0205877.
short: L.L. Ding, E. Beyreuther, B. Koppitz, K. Kempf, J.H. Ren, W.J. Chen, M. Rüsing,
Y. Zheng, L.M. Eng, Applied Physics Letters 124 (2024).
date_created: 2024-07-01T21:03:23Z
date_updated: 2025-04-03T12:35:17Z
department:
- _id: '15'
- _id: '169'
- _id: '623'
doi: 10.1063/5.0205877
intvolume: ' 124'
issue: '25'
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1063/5.0205877
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Comparative study of photo-induced electronic transport along ferroelectric
domain walls in lithium niobate single crystals
type: journal_article
user_id: '22501'
volume: 124
year: '2024'
...