MICROSTRUCTURE AND FRACTURE-TOUGHNESS OF HOT-PRESSED ZIRCONIA-TOUGHENED SIALON

被引：14

作者：

CAIN, MG ^{[1
]}

LEWIS, MH ^{[1
]}

机构：

[1] UNIV WARWICK, CTR ADV MAT TECHNOL, COVENTRY CV4 7AL, W MIDLANDS, ENGLAND

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb03918.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：

Zirconia-toughened sialon composites have been fabricated using conventional hot-pressing techniques. The fracture toughness and microstructure were determined for CeO2- and Y2O3-stabilized ZrO2 additives and also as a function of volume percent ZrO2. The yttria system showed a linear increase in fracture toughness with increasing volume fraction zirconia content while the ceria-stabilized system exhibited a peak in fracture toughness at 20 vol% ZrO2 content. The fracture toughness at 800-degrees-C was measured and correlated with the microstructure. High-temperature stability was determined and it was found that the deleterious nitride phases of zirconium could be precluded from the microstructure.

引用

页码：1401 / 1408

页数：8

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