TY  - JOUR
AU  - Zhou, Wenyu
AU  - Zeng, Fanlin
AU  - Malzbender, Jürgen
AU  - Schlenz, Hartmut
AU  - Deibert, Wendelin
AU  - Sergeev, Dmitry
AU  - Povstugar, Ivan
AU  - Schwaiger, Ruth
AU  - Nijmeijer, Arian
AU  - Müller, Michael
AU  - Guillon, Olivier
AU  - Meulenberg, Wilhelm Albert
TI  - Promoting densification and grain growth of BaCe0.65Zr0.2Y0.15O3-
JO  - Journal of materials research and technology
VL  - 27
SN  - 2238-7854
CY  - Rio de Janeiro
PB  - Elsevier
M1  - FZJ-2023-04190
SP  - 3531 - 3538
PY  - 2023
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001105416100001
DO  - DOI:10.1016/j.jmrt.2023.10.180
UR  - https://juser.fz-juelich.de/record/1017550
ER  -