DAMAGE HEALING AND STRENGTHENING BEHAVIOR IN INTELLIGENT MULLITE/SIC CERAMICS
DAMAGE HEALING AND STRENGTHENING BEHAVIOR IN INTELLIGENT MULLITE/SIC CERAMICS
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DOI：
10.1111/j.1460-2695.1995.tb00924.x
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发表时间：
1995-09-01
影响因子：
3.7
通讯作者：
ANDO, K
中科院分区：
文献类型：
--
作者：
CHU, MC;SATO, S;ANDO, K
制备了15种不同显微结构的莫来石/SiC复合材料，研究了SiC体积分数和SiC粒度对莫来石形貌和力学性能的影响。特别注意热处理对断裂应力的影响。结果表明，这些材料具有损伤自修复特性。在给定的试验条件下，最佳的莫来石/SiC系统是20%体积的SiC，具有0.56 μ m的晶粒尺寸，并且损伤愈合的最佳条件是在空气气氛中在1300 ℃下热处理1小时。
Fifteen kinds of mullite/SiC samples with different microstructures were prepared in order to examine the effect of SiC volume% and SiC grain size on mullite morphology and mechanical properties. Special attention was paid to the effect of heat-treatment on fracture stress. It is shown that these materials have damage self-healing characteristics. The best mullite/SiC system, within the given test conditions, is 20% by volume of SiC, having a grain size of 0.56 mu m, and the best condition for damage healing is a 1 h heat treatment at 1300 degrees C in an air atmosphere.