Kim, In-Yeop Biswas, Mridula Hong, Jongsup Yoon, Kyung Joong Son, Ji-Won Lee, Jong-Ho Kim, Byung-Kook Je, Hae-June Lee, Hae-Weon 2024-01-20T09:02:21Z 2024-01-20T09:02:21Z 2021-09-02 2014-09 0272-8842 https://pubs.kist.re.kr/handle/201004/126406 The effect of internal and external constraints on the sintering behavior of yttria-stabilized zirconia (YSZ) thin film electrolytes is investigated for intermediate-temperature solid oxide fuel cells (SOFCs). The external constraints imposed by rigid substrates result in major process flaws, such as vertical and delamination cracks during film densification, in a chemical solution deposition (CSD) process. In this study, YSZ nanoparticles are incorporated into the precursor solution to impose internal constraints and control the shrinkage rate of the sol gel matrix. Because the structural stability of the thin film is determined by the grain size distribution, it is critical to optimize the content and dispersion structure of the nanoparticles and the sintering temperature to obtain a gas-tight thin film electrolyte for SOFCs. A clustering model is proposed to obtain a comprehensive understanding of the sintering behavior of the YSZ thin-film electrolyte containing the nanoparticles in the CSD process. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. English ELSEVIER SCI LTD STABILIZED ZIRCONIA ELECTROLYTE DEPOSITION CSD PROCESS MICROSTRUCTURAL DEVELOPMENT VAPOR-DEPOSITION PERFORMANCE LAYER DENSIFICATION INCLUSIONS ANODE Effect of internal and external constraints on sintering behavior of thin film electrolytes for solid oxide fuel cells (SOFCs) Article 10.1016/j.ceramint.2014.05.016 1 CERAMICS INTERNATIONAL, v.40, no.8, pp.13131 - 13138 CERAMICS INTERNATIONAL 40 8 13131 13138 scie scopus 000340321300066 2-s2.0-84903902632 Materials Science, Ceramics Materials Science Article STABILIZED ZIRCONIA ELECTROLYTE DEPOSITION CSD PROCESS MICROSTRUCTURAL DEVELOPMENT VAPOR-DEPOSITION PERFORMANCE LAYER DENSIFICATION INCLUSIONS ANODE Sintering Densification Electrolyte Nano-particle Solid oxide fuel cell