Grain boundary sliding in cubic zirconia bicrystal

被引：0

作者：

Yokoyama, K ^{[1
]}

Watanabe, T ^{[1
]}

Shibata, N ^{[1
]}

Yoshida, H ^{[1
]}

Ikuhara, Y ^{[1
]}

Sakuma, T ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II | 2001年

关键词：

grain boundary sliding; grain boundary energy; cubic zirconia; bicrystal;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain boundary energy and high temperature grain boundary sliding behavior in cubic zirconia were examined in zirconia bicrystal with [110] symmetric tilt boundaries, which were fabricated by diffusion bonding method from two zirconia single crystals. The grain boundary in cubic zirconia has no pore or amorphous phase, which indicates that bonding has been done quite successfully Using thermal grooving and AFM techniques, the grain boundary energy of zirconia bicrystals were obtained; the grain boundary energy of cubic zirconia bicrystal shows similar tendency to that of fee metals such as aluminum or copper. The grain boundary sliding test was carried out by using high temperature uniaxial compression creep testing machine. The amount of the grain boundary sliding depends on the misorientation of the boundaries. Traces of slip indicating intragranular slip in cubic zirconia were observed for all specimen, and the grain boundary sliding associated with grain boundary migration was observed in some of the specimen. The grain boundary sliding behavior in cubic zirconia bicrystal can be understood from the viewpoint of the grain boundary energies and the microstructures at the grain boundary.

引用

页码：2771 / 2774

页数：4

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