Grain size and grain boundary effects on the mechanical behavior of fully stabilized zirconia investigated by nanoindentation

被引：64

作者：

Lian, Jie ^{[1
]}

Garay, Javier E. ^{[1
]}

Wang, Junlan ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 12期

关键词：

grain size effect; grain boundary effect; pop-in; F-YSZ;

D O I：

10.1016/j.scriptamat.2007.02.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical behavior of fully yttria stabilized zirconia (F-YSZ) was investigated by nanoindentation. The coarse- and fine-grained materials displayed similar reduced modulus and hardness. Clear pop-in was observed in coarse-grained F-YSZ, with the pop-in loads varying with grain orientation and distance from the grain boundary. Pop-in was not clear in nanocrystalline F-YSZ. The lower hardness of the grain boundary and the similar hardness of the two grain-sized materials indicate an intrinsic atomic structure difference in the coarse- and fine-grained F-YSZ. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1095 / 1098

页数：4

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