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Research Article | Open Access

Sintering behavior of alumina whisker reinforced zirconia ceramics in hot oscillatory pressing

Hongtian HEa, Rui ZHAOa, Hongyi TIANa, Gang SHAOa( ), Hailong WANGa, Bingbing FANa, Hongxia LUa, Hongliang XUa, Rui ZHANGa,b, Li-nan ANc( )
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
School of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, China
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Abstract

Alumina whisker reinforced zirconia ceramic composite was prepared by both hot oscillatory pressing (HOP) and conventional hot pressing (HP). The results show that compared with HP, HOP can significantly increase the final density and densification rate of the material. Analysis of densification kinetics reveals that the predominant densification mechanism transits from grain boundary sliding in the beginning to the diffusion in the later stage. The main effect of the oscillating pressure is to increase the densification rate in the process of grain boundary sliding. The current study suggests that HOP is a promising technique for densifying whisker reinforced ceramics.

Keywords

hot oscillatory pressing (HOP)densification behaviorgrain boundary slidingwhisker reinforced ceramic composite

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Journal of Advanced Ceramics
Volume 11 Issue 6,
June 2022
Pages 893-900
DOI: 10.1007/s40145-022-0583-5

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Cite this article:
HE H, ZHAO R, TIAN H, et al. Sintering behavior of alumina whisker reinforced zirconia ceramics in hot oscillatory pressing. Journal of Advanced Ceramics, 2022, 11(6): 893-900. https://doi.org/10.1007/s40145-022-0583-5

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Received: 30 October 2021
Revised: 25 February 2022
Accepted: 27 February 2022
Published: 13 May 2022
© The Author(s) 2022.

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