Sintering of zirconia-yttria ceramics studied by impedance spectroscopy

被引：42

作者：

de Florio, DZ ^{[1
]}

Muccillo, R ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05422970 Sao Paulo, Brazil

来源：

SOLID STATE IONICS | 1999年 / 123卷 / 1-4期

基金：

巴西圣保罗研究基金会;

关键词：

zirconia; sintering; impedance spectroscopy;

D O I：

10.1016/S0167-2738(99)00093-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sintering of ZrO(2):Y(2)O(3) ceramic compacts have been studied by impedance spectroscopy measurements at 400 degrees C in the 5 Hz-13 MHz frequency range. Cold-pressed samples processed by a co-precipitation route were heat treated at 1350 degrees C for different periods of time. The intragranular resistivity remains constant while the intergranular resistivity decreases for increasing sintering time. A correlation between sintering time and parameters related to pore density determined by impedance spectroscopy was found. The results show that details of the sintering process can be followed by impedance spectroscopy. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：301 / 305

页数：5

共 16 条

[1] Solute segregation and grain-boundary impedance in high-purity stabilized zirconia [J].