Morphology of magnesium lithium aluminum silicate matrix reinforced by silicon carbide fibers during high temperature tests
Morphology of magnesium lithium aluminum silicate matrix reinforced by silicon carbide fibers during high temperature tests
复制标题
碳化硅纤维增强硅酸镁锂铝基体高温试验形貌
DOI：
10.1016/0025-5408(92)90197-8
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
J. Chermant
中科院分区：
文献类型：
--
作者：
D. Kervadec;M. Coster;J. Chermant
对于基于镁锂铝硅酸盐基质中的SiC纤维的陶瓷基质复合材料，已经发现玻璃陶瓷基质是由堇青石和锂辉石制成的两相。这种形态在热处理和/或蠕变测试期间演变。的形态特征-体积分数，比周长，比表面积和平均弦长的数量和重量-在这个矩阵中的堇青石相进行了研究和量化，使用自动图像分析，更特别的是P（1）功能和粒度在灰度级。在堇青石相的分层，然后在1300 K以上的温度下粗化的证据。
For ceramic matrix composites based on SiC fibers in a magnesium lithium aluminum silicate matrix, the vitroceramic matrix has been found two-phased, made of cordierite and spodumene. This morphology evolves during heat treatment and/or creep tests. The morphological characteristics - volume fraction, specific perimeter, specific surface area and mean chord length in number and in weight - of the cordierite phase in this matrix have been investigated and quantified, using automatic image analysis and more specially the P(l) function and granulometry in grey tone levels. Evidence is given on a demixtion in the cordierite phase followed by a coarsening at temperatures above 1300K.