| Autor: |
Wenyu Zhou, Fanlin Zeng, Jürgen Malzbender, Hartmut Schlenz, Wendelin Deibert, Dmitry Sergeev, Ivan Povstugar, Ruth Schwaiger, Arian Nijmeijer, Michael Müller, Olivier Guillon, Wilhelm Albert Meulenberg |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Journal of Materials Research and Technology, Vol 27, Iss , Pp 3531-3538 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2023.10.180 |
| Popis: |
BaCe0.65Zr0.2Y0.15O3-δ (BCZ20Y15) has raised great interest due to its good protonic conductivity and chemical stability. However, the sintering of the material is considerably challenged by its refractory nature. In the current work, almost fully densified single-phase BCZ20Y15 with grain sizes exceeding 10 μm was successfully fabricated by sintering at 1500 °C by using calcined powders consisting of naturally separated perovskite phases and 0.5 wt% NiO. The role of NiO as sintering aid was elucidated by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Atom Probe Tomography (APT) methods, concerning global and local material composition. Furthermore, the mechanism leading to the promoted densification and grain growth is elucidated based on current experimental results and a comprehensive review of the literature. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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