INTRODUCING COMPRESSIVE SURFACE STRESSES INTO BRITTLE MATERIALS.

被引：0

作者：

Troczynski, Thomas B. ^{[1
]}

Nicholson, Patrick S. ^{[1
]}

机构：

[1] McMaster Univ, Hamilton, Ont, Can, McMaster Univ, Hamilton, Ont, Can

来源：

Journal of the American Ceramic Society | 1987年 / 70卷 / 05期

关键词：

MATERIALS SCIENCE - REFRACTORY MATERIALS - Zirconia;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Sodium beta -Al//2O//3 changes its molar volume upon ion exchange. This effect can be utilized to introduce surface compression into brittle matrices. This process can be achieved by dispersing tetragonal ZrO//2 particles throughout a ceramic matrix and inducing their phase change to monoclinic in the composite surface. The compressive stresses arise from the volume increase accompanying the tetragonal-to-monoclinic phase transformation of the dispersed ZrO//2.

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