LOCALIZED IMPACT DAMAGE IN TRANSFORMATION-TOUGHENED ZIRCONIA

被引：4

作者：

KIRCHNER, HP ^{[1
]}

GRUVER, RM ^{[1
]}

RICHARD, DM ^{[1
]}

GARVIE, RC ^{[1
]}

机构：

[1] CSIRO,DIV MAT SCI,MELBOURNE,AUSTRALIA

来源：

MATERIALS SCIENCE AND ENGINEERING | 1979年 / 40卷 / 01期

关键词：

D O I：

10.1016/0025-5416(79)90007-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zirconia specimens partially stabilized with calcia and aged for various times to vary KIC were impacted by glass, steel and tungsten carbide spheres. The impact damage was characterized. The zirconia was resistant to damage by the softer spheres, glass and steel, but the tungsten carbide caused visible damage (indentations) at impact velocities as low as 9 m s-1. At higher velocities radial, lateral vent and circumferential cracks were observed. Indentation and stress wave energy loss mechanisms account for most of the observed energy losses. The remaining strengths after impact increased somewhat less than expected with increasing KIC. © 1979.

引用

页码：49 / 57

页数：9

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