Transformed Zro2 volume fraction in Al2o3 matrix multi-toughening composites
Transformed Zro2 volume fraction in Al2o3 matrix multi-toughening composites
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DOI：
10.1016/0013-7944(91)90237-u
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发表时间：
1991
影响因子：
5.4
通讯作者：
K. Ikeda;T. Kishi
中科院分区：
文献类型：
--
作者：
K. Ikeda;T. Kishi
采用SiC晶须和zro2颗粒增韧al2o3基复合材料，研究了复合材料增韧过程。通过拉曼显微光谱和扫描电镜分析，发现了以下特征：(1)方形zro2的稳定性取决于接收样品的体积分数和与晶须的距离；(2)晶须与zro2颗粒的相互作用提供了额外的断裂韧性，这种相互作用可归因于相变后的微裂纹。
Al2O3matrix composites multi-toughened with SiC whiskers and ZrO2particles are used to obtain information about what happens in multi-toughened composites. By the help of Raman microspectroscopy and scanning electron microscopy, the following characteristics are revealed: (1) the stability of tetragonal ZrO2depends on the volume fraction and the distance from whisker in as-received specimens; (2) the interaction between whisker and ZrO2particles provides additional fracture toughness and this interaction can be attributed to microcracking following transformation.