Preparation of Industrial Watchcase of 5Y-Tetragonal ZrO2  by Microwave Sintering

Xiao Xuan Pian; Bing Bing Fan; Xin Zhang; Hao Chen; Chen Yang Wang; Biao Zhao; Rui Zhang

doi:10.4028/www.scientific.net/KEM.602-603.323

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Preparation of Industrial Watchcase of...

Preparation of Industrial Watchcase of 5Y-Tetragonal ZrO₂ by Microwave Sintering

Abstract:

The industrial watchcases of 5Y-Tetragonal ZrO₂were prepared by microwave sintering. Samples were sintered in a microwave chamber with TE666 resonant mode at 2.45GHz. The sintering temperature was from 1250°C to 1400°C. XRD and SEM techniques were used to characterize the samples. It is found that microwave sintering improved the phase change from t-ZrO₂ to m-ZrO₂. Dense and homogeneous microstructure was obtained within the microwave-sintered samples and the average grain size was about 500nm. Compared to conventional sintering, microwave-sintered samples show higher density and hardness. And microwave-sintered samples were performed 130°C lower temperature. Optimized sample with the density of 6.1 g/cm³and Vickers Hardness of 16.2MPa is microwave-sintered at 1350°C for 30min.

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Key Engineering Materials (Volumes 602-603)

Pages:

323-326

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.323

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Online since:

March 2014

Authors:

Xiao Xuan Pian, Bing Bing Fan, Xin Zhang, Hao Chen, Chen Yang Wang, Biao Zhao, Rui Zhang*

Keywords:

5Y-Tetragonal ZrO₂, Industrial Watchcase, Microwave Sintering

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