SUPERPLASTIC PROPERTIES OF A FINE-GRAINED YTTRIA-STABILIZED TETRAGONAL POLYCRYSTAL OF ZIRCONIA

被引：118
|
作者：
NIEH, TG
MCNALLY, CM
WADSWORTH, J
机构：
[1] Lockheed Missiles & Space Co,, Palo Alto, CA, USA, Lockheed Missiles & Space Co, Palo Alto, CA, USA
来源：
SCRIPTA METALLURGICA | 1988年 / 22卷 / 08期
关键词：
STRAIN; -; STRESSES;
D O I：
10.1016/S0036-9748(88)80150-9
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Yttria stabilized tetragonal Zirconia polycrystal, Y-TZP, was subjected to high temperature tensile tests in a vacuum (10** minus **3 Pa). Superplasticity in fine-grained Y-TZP, as first reported by F. Wakai et al. has been demonstrated to be reproducible. In addition, a high elongation value of 350 percent has been obtained at 1550 degree C. The microstructure of the Y-TZP appears to be stable at 1450 degree C but grain growth takes place in specimens tested at 1550 degree C. 12 Refs.
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页码：1297 / 1300
页数：4
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