Densification Kinetics of Multi-Doped Zirconia Ceramic Body with Organic Coating Powders

Y.G. Hoo; Yusheng Shi; Wenzhong Lu

doi:10.20944/preprints201812.0046.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 2 December 2018 / Approved: 4 December 2018 / Online: 4 December 2018 (08:40:33 CET)

Abstract: This work for the first time investigated the densification of multi-doping zirconia ceramic body with organic coating powders for solid electrolyte of solid oxide fuel cells via online imaging technology. The densification results show the initial stage plays a key role in the sintering. It can be found the covered organic PVA (polyvinyl acetate) supplies a potential kinetics to the initial densification during sintering. As a result, a kinetic function of densification in the initial stage was suggested. Furthermore, a novel sintering model with six sub-stages is developed for polycrystalline zirconia ceramics. The findings would be a valuable reference for predicting final temperature of sintering, the equivalent strain during the sintering process, as well as optimizing the densification behavior.

online imaging analysis; polycrystalline zirconia; densification kinetics

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Densification Kinetics of Multi-Doped Zirconia Ceramic Body with Organic Coating Powders

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