Aging of ceria-stabilized zirconia in water and its mechanism

Chi-Shen Tien; Ce-Lung Tung; Wei-Hsing Tuan; Po-Liang Lai

Open Ceramics (Mar 2024)

Aging of ceria-stabilized zirconia in water and its mechanism

Chi-Shen Tien,
Ce-Lung Tung,
Wei-Hsing Tuan,
Po-Liang Lai

Affiliations

Chi-Shen Tien: Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
Ce-Lung Tung: Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan
Wei-Hsing Tuan: Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan; Corresponding author.
Po-Liang Lai: Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Corresponding author.

Journal volume & issue: Vol. 17
p. 100564

Abstract

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In this study, the aging behavior of ceria-stabilized zirconia (Ce–TZP) in water is evaluated, and the aging mechanism is proposed. To eliminate the effect of processing parameters, a methodology involving the introduction of various amounts of the m-phase into one specimen disc is explored. With this method, the formation of the m phase can be attributed to the reduction of Ce4+ to Ce3+ in Ce–TZP. Oxygen vacancies play a key role in the aging behavior. Although the addition of Al2O3 particles refines the Ce–TZP microstructure, their presence reduces the aging resistance of Ce–TZP.

Published in Open Ceramics

ISSN: 2666-5395 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Clay industries. Ceramics. Glass
Website: https://www.journals.elsevier.com/open-ceramics

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