INFLUENCE OF RESIDUAL IMPURITIES ON PHASE PARTITIONING AND GRAIN-GROWTH PROCESSES OF Y-TZP MATERIALS

被引：104

作者：

STOTO, T ^{[1
]}

NAUER, M ^{[1
]}

CARRY, C ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE,CERAM LAB,CH-1015 LAUSANNE,SWITZERLAND

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 10期

关键词：

D O I：

10.1111/j.1151-2916.1991.tb06809.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microstructural evolution at 1450-degrees-C of two 3 mol% Y2O3-ZrO2 tetragonal polycrystals (Y-TZP) containing different residual impurity amounts has been investigated by analytical and scanning electron microscopy in order to clarify the role of the amorphous intergranular phases. Phase partitioning is interpreted as a process based on dissolution/reprecipitation reactions involving mass transport via the liquid impurity phase. Grain growth is inhibited by yttria migration before the phase equilibrium is reached, then increases drastically.

引用

页码：2615 / 2621

页数：7

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