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

被引：59
|
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
收藏
页码：1095 / 1098
页数：4
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