[{"citation":{"apa":"CIESLAR, M., KŘIVSKÁ, B., KRÁLÍK, R., BAJTOŠOVÁ, L., Grydin, O., STOLBCHENKO, M., &#38; Schaper, M. (2022). HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY. <i>METAL 2022 Conference Proeedings</i>. Metal 2022, Brno. <a href=\"https://doi.org/10.37904/metal.2022.4438\">https://doi.org/10.37904/metal.2022.4438</a>","bibtex":"@inproceedings{CIESLAR_KŘIVSKÁ_KRÁLÍK_BAJTOŠOVÁ_Grydin_STOLBCHENKO_Schaper_2022, title={HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY}, DOI={<a href=\"https://doi.org/10.37904/metal.2022.4438\">10.37904/metal.2022.4438</a>}, booktitle={METAL 2022 Conference Proeedings}, publisher={TANGER Ltd.}, author={CIESLAR, Miroslav and KŘIVSKÁ, Barbora and KRÁLÍK, Rostislav and BAJTOŠOVÁ, Lucia and Grydin, Olexandr and STOLBCHENKO, Mykhailo and Schaper, Mirko}, year={2022} }","short":"M. CIESLAR, B. KŘIVSKÁ, R. KRÁLÍK, L. BAJTOŠOVÁ, O. Grydin, M. STOLBCHENKO, M. Schaper, in: METAL 2022 Conference Proeedings, TANGER Ltd., 2022.","mla":"CIESLAR, Miroslav, et al. “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY.” <i>METAL 2022 Conference Proeedings</i>, TANGER Ltd., 2022, doi:<a href=\"https://doi.org/10.37904/metal.2022.4438\">10.37904/metal.2022.4438</a>.","ieee":"M. CIESLAR <i>et al.</i>, “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY,” presented at the Metal 2022, Brno, 2022, doi: <a href=\"https://doi.org/10.37904/metal.2022.4438\">10.37904/metal.2022.4438</a>.","chicago":"CIESLAR, Miroslav, Barbora KŘIVSKÁ, Rostislav KRÁLÍK, Lucia BAJTOŠOVÁ, Olexandr Grydin, Mykhailo STOLBCHENKO, and Mirko Schaper. “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY.” In <i>METAL 2022 Conference Proeedings</i>. TANGER Ltd., 2022. <a href=\"https://doi.org/10.37904/metal.2022.4438\">https://doi.org/10.37904/metal.2022.4438</a>.","ama":"CIESLAR M, KŘIVSKÁ B, KRÁLÍK R, et al. HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY. In: <i>METAL 2022 Conference Proeedings</i>. TANGER Ltd.; 2022. doi:<a href=\"https://doi.org/10.37904/metal.2022.4438\">10.37904/metal.2022.4438</a>"},"publication_identifier":{"issn":["2694-9296"]},"publication_status":"published","doi":"10.37904/metal.2022.4438","conference":{"start_date":"2022-05-18","name":"Metal 2022","location":"Brno","end_date":"2022-05-19"},"main_file_link":[{"open_access":"1","url":"https://www.confer.cz/metal/2022/4438-homogenization-of-twin-roll-cast-al-li-based-alloy-studied-by-in-situ-electron-microscopy"}],"author":[{"full_name":"CIESLAR, Miroslav","last_name":"CIESLAR","first_name":"Miroslav"},{"first_name":"Barbora","full_name":"KŘIVSKÁ, Barbora","last_name":"KŘIVSKÁ"},{"last_name":"KRÁLÍK","full_name":"KRÁLÍK, Rostislav","first_name":"Rostislav"},{"first_name":"Lucia","full_name":"BAJTOŠOVÁ, Lucia","last_name":"BAJTOŠOVÁ"},{"first_name":"Olexandr","last_name":"Grydin","id":"43822","full_name":"Grydin, Olexandr"},{"last_name":"STOLBCHENKO","full_name":"STOLBCHENKO, Mykhailo","first_name":"Mykhailo"},{"first_name":"Mirko","full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper"}],"date_updated":"2023-01-12T09:44:17Z","oa":"1","status":"public","type":"conference","department":[{"_id":"158"},{"_id":"321"}],"user_id":"43822","_id":"36335","year":"2022","title":"HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY","date_created":"2023-01-12T09:39:41Z","publisher":"TANGER Ltd.","abstract":[{"lang":"eng","text":"Transformation of Fe- and Cu-rich primary phase particles was studied in an Al-Li-based alloy prepared by twin-roll casting. Thin foils for combined STEM and SEM experiments were prepared by electrolytic twin-jet polishing. They were in-situ heated in a TEM heating stage and observed at 200 kV in the JEOL JEM 2200FS electron microscope equipped with STEM HAADF and BF detectors and SEM BSE and SE detectors working both in composition and topographic modes. The resulting structures were combined with EDS mapping performed directly in the heating holder. Dissolution and transformation of Cu- and Fe-rich particles occur above 500 °C. EDS maps acquired on the foil cooled down to room temperature show that Cu and Fe are both still present in newly formed particles, most likely indicating the presence of the Al7Cu2Fe phase."}],"publication":"METAL 2022 Conference Proeedings","language":[{"iso":"eng"}],"keyword":["Al-Li-based alloy","in-situ TEM","homogenization","phase transformation"]},{"publication_identifier":{"issn":["2694-9296"]},"publication_status":"published","citation":{"chicago":"BAJTOŠOVÁ, Lucia, Olexandr Grydin, Mykhailo STOLBCHENKO, Mirko Schaper, Barbora KŘIVSKÁ, Rostislav KRÁLÍK, Michaela ŠLAPÁKOVÁ, and Miroslav CIESLAR. “Phase Identification in Twin-Roll Cast Al-Li Alloys.” In <i>METAL 2022 Conference Proeedings</i>. TANGER Ltd., 2022. <a href=\"https://doi.org/10.37904/metal.2022.4437\">https://doi.org/10.37904/metal.2022.4437</a>.","ieee":"L. BAJTOŠOVÁ <i>et al.</i>, “Phase identification in twin-roll cast Al-Li alloys,” presented at the Metal 2022, Brno, 2022, doi: <a href=\"https://doi.org/10.37904/metal.2022.4437\">10.37904/metal.2022.4437</a>.","ama":"BAJTOŠOVÁ L, Grydin O, STOLBCHENKO M, et al. Phase identification in twin-roll cast Al-Li alloys. In: <i>METAL 2022 Conference Proeedings</i>. TANGER Ltd.; 2022. doi:<a href=\"https://doi.org/10.37904/metal.2022.4437\">10.37904/metal.2022.4437</a>","apa":"BAJTOŠOVÁ, L., Grydin, O., STOLBCHENKO, M., Schaper, M., KŘIVSKÁ, B., KRÁLÍK, R., ŠLAPÁKOVÁ, M., &#38; CIESLAR, M. (2022). Phase identification in twin-roll cast Al-Li alloys. <i>METAL 2022 Conference Proeedings</i>. Metal 2022, Brno. <a href=\"https://doi.org/10.37904/metal.2022.4437\">https://doi.org/10.37904/metal.2022.4437</a>","mla":"BAJTOŠOVÁ, Lucia, et al. “Phase Identification in Twin-Roll Cast Al-Li Alloys.” <i>METAL 2022 Conference Proeedings</i>, TANGER Ltd., 2022, doi:<a href=\"https://doi.org/10.37904/metal.2022.4437\">10.37904/metal.2022.4437</a>.","short":"L. BAJTOŠOVÁ, O. Grydin, M. STOLBCHENKO, M. Schaper, B. KŘIVSKÁ, R. KRÁLÍK, M. ŠLAPÁKOVÁ, M. CIESLAR, in: METAL 2022 Conference Proeedings, TANGER Ltd., 2022.","bibtex":"@inproceedings{BAJTOŠOVÁ_Grydin_STOLBCHENKO_Schaper_KŘIVSKÁ_KRÁLÍK_ŠLAPÁKOVÁ_CIESLAR_2022, title={Phase identification in twin-roll cast Al-Li alloys}, DOI={<a href=\"https://doi.org/10.37904/metal.2022.4437\">10.37904/metal.2022.4437</a>}, booktitle={METAL 2022 Conference Proeedings}, publisher={TANGER Ltd.}, author={BAJTOŠOVÁ, Lucia and Grydin, Olexandr and STOLBCHENKO, Mykhailo and Schaper, Mirko and KŘIVSKÁ, Barbora and KRÁLÍK, Rostislav and ŠLAPÁKOVÁ, Michaela and CIESLAR, Miroslav}, year={2022} }"},"author":[{"first_name":"Lucia","full_name":"BAJTOŠOVÁ, Lucia","last_name":"BAJTOŠOVÁ"},{"first_name":"Olexandr","full_name":"Grydin, Olexandr","id":"43822","last_name":"Grydin"},{"first_name":"Mykhailo","last_name":"STOLBCHENKO","full_name":"STOLBCHENKO, Mykhailo"},{"first_name":"Mirko","id":"43720","full_name":"Schaper, Mirko","last_name":"Schaper"},{"first_name":"Barbora","last_name":"KŘIVSKÁ","full_name":"KŘIVSKÁ, Barbora"},{"last_name":"KRÁLÍK","full_name":"KRÁLÍK, Rostislav","first_name":"Rostislav"},{"first_name":"Michaela","last_name":"ŠLAPÁKOVÁ","full_name":"ŠLAPÁKOVÁ, Michaela"},{"last_name":"CIESLAR","full_name":"CIESLAR, Miroslav","first_name":"Miroslav"}],"date_updated":"2023-04-27T16:35:42Z","oa":"1","doi":"10.37904/metal.2022.4437","conference":{"end_date":"2022-05-19","location":"Brno","name":"Metal 2022","start_date":"2022-05-18"},"main_file_link":[{"open_access":"1","url":"https://www.confer.cz/metal/2022/4437-phase-identification-in-twin-roll-cast-al-li-alloys"}],"type":"conference","status":"public","department":[{"_id":"158"},{"_id":"321"}],"user_id":"43720","_id":"36339","quality_controlled":"1","year":"2022","date_created":"2023-01-12T09:42:02Z","publisher":"TANGER Ltd.","title":"Phase identification in twin-roll cast Al-Li alloys","publication":"METAL 2022 Conference Proeedings","abstract":[{"text":"Al-Li-based alloys are an attractive material for aircraft and aerospace applications. Preparation of these alloys by twin-roll casting (TRC), which combines rapid metal solidification and subsequent plastic reduction in a single processing step, could improve the properties of the alloys compared to materials prepared by conventional direct-chill casting. A commonly used approach for identifying primary phases is a chemical analysis by energy dispersive spectroscopy (EDS). More accurate results can be achieved by combining the method with diffraction analysis. This process can be considerably simplified in microscopes equipped with automated crystal orientation and phase mapping (ACOM-TEM). Al-Cu-Li-Mg-Zr alloy was prepared by twin-roll casting. A combination of TEM and STEM images with chemical analysis by EDS and ACOM-TEM was used to obtain complex information about phases of boundary primary particles. The efficiency of the individual methods for the phase identification in TRC Al-Li-based alloys is discussed.","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["Al-Cu-Li-M-Zr-Fe alloy","twin-roll casting","phase identification","ACOM-TEM"]},{"author":[{"first_name":"Raquel","last_name":"Aymerich-Armengol","full_name":"Aymerich-Armengol, Raquel"},{"full_name":"Cignoni, Paolo","last_name":"Cignoni","first_name":"Paolo"},{"full_name":"Ebbinghaus, Petra","last_name":"Ebbinghaus","first_name":"Petra"},{"last_name":"Linnemann","orcid":"0000-0001-6883-5424","id":"116779","full_name":"Linnemann, Julia","first_name":"Julia"},{"first_name":"Martin","last_name":"Rabe","full_name":"Rabe, Martin"},{"first_name":"Kristina","full_name":"Tschulik, Kristina","last_name":"Tschulik"},{"first_name":"Christina","last_name":"Scheu","full_name":"Scheu, Christina"},{"first_name":"Joohyun","full_name":"Lim, Joohyun","last_name":"Lim"}],"volume":10,"oa":"1","date_updated":"2025-12-03T16:30:43Z","main_file_link":[{"open_access":"1"}],"doi":"10.1039/d2ta06552e","publication_status":"published","publication_identifier":{"issn":["2050-7488","2050-7496"]},"citation":{"apa":"Aymerich-Armengol, R., Cignoni, P., Ebbinghaus, P., Linnemann, J., Rabe, M., Tschulik, K., Scheu, C., &#38; Lim, J. (2022). Mechanism of coupled phase/morphology transformation of 2D manganese oxides through Fe galvanic exchange reaction. <i>Journal of Materials Chemistry A</i>, <i>10</i>(45), 24190–24198. <a href=\"https://doi.org/10.1039/d2ta06552e\">https://doi.org/10.1039/d2ta06552e</a>","mla":"Aymerich-Armengol, Raquel, et al. “Mechanism of Coupled Phase/Morphology Transformation of 2D Manganese Oxides through Fe Galvanic Exchange Reaction.” <i>Journal of Materials Chemistry A</i>, vol. 10, no. 45, Royal Society of Chemistry (RSC), 2022, pp. 24190–98, doi:<a href=\"https://doi.org/10.1039/d2ta06552e\">10.1039/d2ta06552e</a>.","bibtex":"@article{Aymerich-Armengol_Cignoni_Ebbinghaus_Linnemann_Rabe_Tschulik_Scheu_Lim_2022, title={Mechanism of coupled phase/morphology transformation of 2D manganese oxides through Fe galvanic exchange reaction}, volume={10}, DOI={<a href=\"https://doi.org/10.1039/d2ta06552e\">10.1039/d2ta06552e</a>}, number={45}, journal={Journal of Materials Chemistry A}, publisher={Royal Society of Chemistry (RSC)}, author={Aymerich-Armengol, Raquel and Cignoni, Paolo and Ebbinghaus, Petra and Linnemann, Julia and Rabe, Martin and Tschulik, Kristina and Scheu, Christina and Lim, Joohyun}, year={2022}, pages={24190–24198} }","short":"R. Aymerich-Armengol, P. Cignoni, P. Ebbinghaus, J. Linnemann, M. Rabe, K. Tschulik, C. Scheu, J. Lim, Journal of Materials Chemistry A 10 (2022) 24190–24198.","ieee":"R. Aymerich-Armengol <i>et al.</i>, “Mechanism of coupled phase/morphology transformation of 2D manganese oxides through Fe galvanic exchange reaction,” <i>Journal of Materials Chemistry A</i>, vol. 10, no. 45, pp. 24190–24198, 2022, doi: <a href=\"https://doi.org/10.1039/d2ta06552e\">10.1039/d2ta06552e</a>.","chicago":"Aymerich-Armengol, Raquel, Paolo Cignoni, Petra Ebbinghaus, Julia Linnemann, Martin Rabe, Kristina Tschulik, Christina Scheu, and Joohyun Lim. “Mechanism of Coupled Phase/Morphology Transformation of 2D Manganese Oxides through Fe Galvanic Exchange Reaction.” <i>Journal of Materials Chemistry A</i> 10, no. 45 (2022): 24190–98. <a href=\"https://doi.org/10.1039/d2ta06552e\">https://doi.org/10.1039/d2ta06552e</a>.","ama":"Aymerich-Armengol R, Cignoni P, Ebbinghaus P, et al. Mechanism of coupled phase/morphology transformation of 2D manganese oxides through Fe galvanic exchange reaction. <i>Journal of Materials Chemistry A</i>. 2022;10(45):24190-24198. doi:<a href=\"https://doi.org/10.1039/d2ta06552e\">10.1039/d2ta06552e</a>"},"intvolume":"        10","page":"24190-24198","user_id":"116779","department":[{"_id":"985"}],"_id":"62813","extern":"1","article_type":"original","type":"journal_article","status":"public","date_created":"2025-12-03T16:02:15Z","publisher":"Royal Society of Chemistry (RSC)","title":"Mechanism of coupled phase/morphology transformation of 2D manganese oxides through Fe galvanic exchange reaction","issue":"45","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"keyword":["manganese oxide","nanomaterials","TEM","supercapacitors"],"publication":"Journal of Materials Chemistry A","abstract":[{"lang":"eng","text":"Nanostructured manganese oxides have a rich variety of morphologies and crystal phases which can undergo transformations during synthesis and application. Although these structural features are crucial for their performance, the mechanisms behind such transitions are not well understood. Herein, we describe the mechanism of transformation from layered 2D δ-MnO2 nanosheets to the scarcely reported γ-MnO2 nanocone morphology. Despite the common purpose of introducing Fe dopants to enhance the conductivity of layered manganese oxides, the Fe galvanic exchange reaction was found responsible for such coupled phase/morphology transition. Electrochemical characterization confirmed a distinct electrochemical behaviour of the nanocones, emphasizing the need to unravel the mechanism of 2D MnO2 transformation. Such mechanistic insights were gained by systematic and rigorous electron microscopy studies. The effect of the local chemical composition was determined by energy dispersive X-ray spectroscopy while electron energy loss spectroscopy unravelled the key influence of the oxidation state of Mn ions within nanosheets and nanocones. We propose and demonstrate a Mn2+-mediated oxidative mechanism of coupled morphology/phase transformation subjected to the equilibrium of Fe and Mn ions during galvanic exchange reaction. These findings contribute to the understanding of the growth and morphology/phase transformations of manganese oxide nanostructures, providing insights for the rational design of nanomaterials."}]}]