---
_id: '9878'
abstract:
- lang: eng
  text: (K,Na)NbO3 ceramics have attracted much attention as lead-free piezoelectric
    materials with high piezoelectric properties. High-quality (K,Na)NbO3 ceramics
    can be sintered using KNbO3 and NaNbO3 powders synthesized by a hydrothermal method.
    In this study, to enhance the quality factor of the ceramics, high-power ultrasonic
    irradiation was employed during the hydrothermal method, which led to a reduction
    in the particle size of the resultant powders.
author:
- first_name: G.
  full_name: Isobe, G.
  last_name: Isobe
- first_name: Takafumi
  full_name: Maeda, Takafumi
  last_name: Maeda
- first_name: Peter
  full_name: Bornmann, Peter
  last_name: Bornmann
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
citation:
  ama: Isobe G, Maeda T, Bornmann P, Hemsel T, Morita T. Synthesis of lead-free piezoelectric
    powders by ultrasonic-assisted hydrothermal method and properties of sintered
    (K0.48Na0.52)NBO3 ceramics. <i>Ultrasonics, Ferroelectrics, and Frequency Control,
    IEEE Transactions on</i>. 2014;61(2):225-230. doi:<a href="https://doi.org/10.1109/TUFFC.2014.6722608">10.1109/TUFFC.2014.6722608</a>
  apa: Isobe, G., Maeda, T., Bornmann, P., Hemsel, T., &#38; Morita, T. (2014). Synthesis
    of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method
    and properties of sintered (K0.48Na0.52)NBO3 ceramics. <i>Ultrasonics, Ferroelectrics,
    and Frequency Control, IEEE Transactions On</i>, <i>61</i>(2), 225–230. <a href="https://doi.org/10.1109/TUFFC.2014.6722608">https://doi.org/10.1109/TUFFC.2014.6722608</a>
  bibtex: '@article{Isobe_Maeda_Bornmann_Hemsel_Morita_2014, title={Synthesis of lead-free
    piezoelectric powders by ultrasonic-assisted hydrothermal method and properties
    of sintered (K0.48Na0.52)NBO3 ceramics}, volume={61}, DOI={<a href="https://doi.org/10.1109/TUFFC.2014.6722608">10.1109/TUFFC.2014.6722608</a>},
    number={2}, journal={Ultrasonics, Ferroelectrics, and Frequency Control, IEEE
    Transactions on}, author={Isobe, G. and Maeda, Takafumi and Bornmann, Peter and
    Hemsel, Tobias and Morita, Takeshi}, year={2014}, pages={225–230} }'
  chicago: 'Isobe, G., Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi
    Morita. “Synthesis of Lead-Free Piezoelectric Powders by Ultrasonic-Assisted Hydrothermal
    Method and Properties of Sintered (K0.48Na0.52)NBO3 Ceramics.” <i>Ultrasonics,
    Ferroelectrics, and Frequency Control, IEEE Transactions On</i> 61, no. 2 (2014):
    225–30. <a href="https://doi.org/10.1109/TUFFC.2014.6722608">https://doi.org/10.1109/TUFFC.2014.6722608</a>.'
  ieee: G. Isobe, T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Synthesis of lead-free
    piezoelectric powders by ultrasonic-assisted hydrothermal method and properties
    of sintered (K0.48Na0.52)NBO3 ceramics,” <i>Ultrasonics, Ferroelectrics, and Frequency
    Control, IEEE Transactions on</i>, vol. 61, no. 2, pp. 225–230, 2014.
  mla: Isobe, G., et al. “Synthesis of Lead-Free Piezoelectric Powders by Ultrasonic-Assisted
    Hydrothermal Method and Properties of Sintered (K0.48Na0.52)NBO3 Ceramics.” <i>Ultrasonics,
    Ferroelectrics, and Frequency Control, IEEE Transactions On</i>, vol. 61, no.
    2, 2014, pp. 225–30, doi:<a href="https://doi.org/10.1109/TUFFC.2014.6722608">10.1109/TUFFC.2014.6722608</a>.
  short: G. Isobe, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, Ultrasonics, Ferroelectrics,
    and Frequency Control, IEEE Transactions On 61 (2014) 225–230.
date_created: 2019-05-20T13:10:14Z
date_updated: 2019-09-16T10:53:17Z
department:
- _id: '151'
doi: 10.1109/TUFFC.2014.6722608
intvolume: '        61'
issue: '2'
keyword:
- Q-factor
- ceramics
- crystal growth from solution
- particle size
- piezoelectric materials
- potassium compounds
- powders
- sintering
- sodium compounds
- ultrasonic effects
- (K0.48Na0.52)NbO3
- KNbO3 powders
- NaNbO3 powders
- high-power ultrasonic irradiation
- lead-free piezoelectric materials
- lead-free piezoelectric powders
- particle size reduction
- piezoelectric properties
- quality factor
- sintered (K0.48Na0.52)NbO3 ceramics
- sintering
- ultrasonic-assisted hydrothermal method
- Acoustics
- Ceramics
- Lead
- Piezoelectric materials
- Powders
- Radiation effects
- Transducers
language:
- iso: eng
page: 225-230
publication: Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions
  on
publication_identifier:
  issn:
  - 0885-3010
quality_controlled: '1'
status: public
title: Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal
  method and properties of sintered (K0.48Na0.52)NBO3 ceramics
type: journal_article
user_id: '55222'
volume: 61
year: '2014'
...
---
_id: '9785'
abstract:
- lang: eng
  text: Hydrothermal method enables to synthesize high quality piezoelectric materials.
    To shorten the reaction time and to get higher quality materials, we propose an
    ultrasonic irradiation to the solution during the hydrothermal method. We named
    it ultrasonic assisted hydrothermal method (UAHTM). We have synthesized lead-free
    piezoelectric material and PZT thin film and the effect of UAHTM have been confirmed.
    In this study, we tried to improve UAHTM. First, to generate powerful and stable
    ultrasonic irradiation at high temperature on UAHTM, we developed a new transducer
    using LiNbO3 single crystal. Second, to prevent contamination to the materials,
    A Teflon cover on the tip of transducer was attached.
author:
- first_name: Gaku
  full_name: Isobe, Gaku
  last_name: Isobe
- first_name: Ryo
  full_name: Ageba, Ryo
  last_name: Ageba
- first_name: Takafumi
  full_name: Maeda, Takafumi
  last_name: Maeda
- first_name: Peter
  full_name: Bornmann, Peter
  last_name: Bornmann
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
citation:
  ama: 'Isobe G, Ageba R, Maeda T, Bornmann P, Hemsel T, Morita T. Synthesis of piezoelectric
    materials by ultrasonic assisted hydrothermal method. In: B. J. Linde B, Paczkowski
    J, Ponikwicki N, eds. <i>AIP Conference Proceedings</i>. Vol 1433. AIP; 2012:569-572.
    doi:<a href="https://doi.org/10.1063/1.3703251">10.1063/1.3703251</a>'
  apa: Isobe, G., Ageba, R., Maeda, T., Bornmann, P., Hemsel, T., &#38; Morita, T.
    (2012). Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal
    method. In B. B. J. Linde, J. Paczkowski, &#38; N. Ponikwicki (Eds.), <i>AIP Conference
    Proceedings</i> (Vol. 1433, pp. 569–572). AIP. <a href="https://doi.org/10.1063/1.3703251">https://doi.org/10.1063/1.3703251</a>
  bibtex: '@inproceedings{Isobe_Ageba_Maeda_Bornmann_Hemsel_Morita_2012, title={Synthesis
    of piezoelectric materials by ultrasonic assisted hydrothermal method}, volume={1433},
    DOI={<a href="https://doi.org/10.1063/1.3703251">10.1063/1.3703251</a>}, number={1},
    booktitle={AIP Conference Proceedings}, publisher={AIP}, author={Isobe, Gaku and
    Ageba, Ryo and Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita,
    Takeshi}, editor={B. J. Linde, Bogumil and Paczkowski, Jacek and Ponikwicki, NikodemEditors},
    year={2012}, pages={569–572} }'
  chicago: Isobe, Gaku, Ryo Ageba, Takafumi Maeda, Peter Bornmann, Tobias Hemsel,
    and Takeshi Morita. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted
    Hydrothermal Method.” In <i>AIP Conference Proceedings</i>, edited by Bogumil
    B. J. Linde, Jacek Paczkowski, and Nikodem Ponikwicki, 1433:569–72. AIP, 2012.
    <a href="https://doi.org/10.1063/1.3703251">https://doi.org/10.1063/1.3703251</a>.
  ieee: G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Synthesis
    of piezoelectric materials by ultrasonic assisted hydrothermal method,” in <i>AIP
    Conference Proceedings</i>, 2012, vol. 1433, no. 1, pp. 569–572.
  mla: Isobe, Gaku, et al. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted
    Hydrothermal Method.” <i>AIP Conference Proceedings</i>, edited by Bogumil B.
    J. Linde et al., vol. 1433, no. 1, AIP, 2012, pp. 569–72, doi:<a href="https://doi.org/10.1063/1.3703251">10.1063/1.3703251</a>.
  short: 'G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, in: B.
    B. J. Linde, J. Paczkowski, N. Ponikwicki (Eds.), AIP Conference Proceedings,
    AIP, 2012, pp. 569–572.'
date_created: 2019-05-13T13:21:56Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1063/1.3703251
editor:
- first_name: Bogumil
  full_name: B. J. Linde, Bogumil
  last_name: B. J. Linde
- first_name: Jacek
  full_name: Paczkowski, Jacek
  last_name: Paczkowski
- first_name: Nikodem
  full_name: Ponikwicki, Nikodem
  last_name: Ponikwicki
intvolume: '      1433'
issue: '1'
keyword:
- contamination
- lead compounds
- piezoelectric materials
- piezoelectric thin films
- piezoelectric transducers
- ultrasonic effects
language:
- iso: eng
page: 569-572
publication: AIP Conference Proceedings
publisher: AIP
quality_controlled: '1'
status: public
title: Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method
type: conference
user_id: '55222'
volume: 1433
year: '2012'
...