Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms
Yttrium-doped barium cerate (BaCe0.9Y0.1O3-δ, BCY) powders were synthesized via two powder processing routes: i) the conventional solid-state reaction and ii) modified wet chemical method. The influence of sintering schedules on densification mechanisms, microstructural evolution and electrical prop...
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University of Novi Sad
2025-03-01
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| Series: | Processing and Application of Ceramics |
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| Online Access: | https://doiserbia.nb.rs/img/doi/1820-6131/2025/1820-61312501084A.pdf |
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| author | de Araujo Huyra Estevao |
| author_facet | de Araujo Huyra Estevao |
| author_sort | de Araujo Huyra Estevao |
| collection | DOAJ |
| description | Yttrium-doped barium cerate (BaCe0.9Y0.1O3-δ, BCY) powders were synthesized via two powder processing routes: i) the conventional solid-state reaction and ii) modified wet chemical method. The influence of sintering schedules on densification mechanisms, microstructural evolution and electrical properties was systematically investigated. The results indicate that the intrinsic liquid-phase assisted sintering occurs in the samples prepared by both routes, but it is more prominent for the low-sinterability powder synthesized by solid-state reaction, leading to a more uniform microstructure and conductivity less dependent on sintering conditions. Electrical conductivity measurements revealed that the ceramics prepared via the wet chemical route exhibited superior proton conductivity at lower sintering temperatures, though with more significant variability depending on the processing conditions. The competition between solid-state and liquid-phase sintering significantly impacts densification and electrical performance. These findings highlight the critical role of processing routes and intrinsic liquid phase in tailoring the microstructure and optimizing the electrical properties of the BCY ceramics for electrochemical applications. |
| format | Article |
| id | doaj-art-9d93a92f355a483c9e7ccba7fcdd09d8 |
| institution | OA Journals |
| issn | 1820-6131 2406-1034 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj-art-9d93a92f355a483c9e7ccba7fcdd09d82025-08-20T01:52:19ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342025-03-01191849310.2298/PAC2501084ASinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanismsde Araujo Huyra Estevao0https://orcid.org/0000-0003-2731-9620Federal Institute of Education, Science, and Technology of Sao Paulo, BrazilYttrium-doped barium cerate (BaCe0.9Y0.1O3-δ, BCY) powders were synthesized via two powder processing routes: i) the conventional solid-state reaction and ii) modified wet chemical method. The influence of sintering schedules on densification mechanisms, microstructural evolution and electrical properties was systematically investigated. The results indicate that the intrinsic liquid-phase assisted sintering occurs in the samples prepared by both routes, but it is more prominent for the low-sinterability powder synthesized by solid-state reaction, leading to a more uniform microstructure and conductivity less dependent on sintering conditions. Electrical conductivity measurements revealed that the ceramics prepared via the wet chemical route exhibited superior proton conductivity at lower sintering temperatures, though with more significant variability depending on the processing conditions. The competition between solid-state and liquid-phase sintering significantly impacts densification and electrical performance. These findings highlight the critical role of processing routes and intrinsic liquid phase in tailoring the microstructure and optimizing the electrical properties of the BCY ceramics for electrochemical applications.https://doiserbia.nb.rs/img/doi/1820-6131/2025/1820-61312501084A.pdfbarium cerateproton conductorliquid phase sinteringelectrical conductivity |
| spellingShingle | de Araujo Huyra Estevao Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms Processing and Application of Ceramics barium cerate proton conductor liquid phase sintering electrical conductivity |
| title | Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms |
| title_full | Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms |
| title_fullStr | Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms |
| title_full_unstemmed | Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms |
| title_short | Sinterability and electrical characterization of BaCe0.9Y0.1O3-δ: A discussion on intrinsic liquid-phase mechanisms |
| title_sort | sinterability and electrical characterization of bace0 9y0 1o3 δ a discussion on intrinsic liquid phase mechanisms |
| topic | barium cerate proton conductor liquid phase sintering electrical conductivity |
| url | https://doiserbia.nb.rs/img/doi/1820-6131/2025/1820-61312501084A.pdf |
| work_keys_str_mv | AT dearaujohuyraestevao sinterabilityandelectricalcharacterizationofbace09y01o3dadiscussiononintrinsicliquidphasemechanisms |