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Mullite-zirconia-fibre/molybdenum-matrix composites: Strength and damage tolerance
Composites Part A: Applied Science and Manufacturing ( IF 8.7 ) Pub Date : 2018-06-19 , DOI: 10.1016/j.compositesa.2018.06.023
S.T. Mileiko , V.A. Chumichev

Molybdenum-matrix composites reinforced with composite fibres containing mullite and zirconia in various proportions (including that corresponding to eutectic) were successfully produced by the internal crystallisation method. The composites are characterised by a high damage tolerance: the average notch sensitivity value is 0.71, while the maximum value of this parameter approaches 1. Composites with eutectic and off-eutectic fibre compositions are sufficiently strong at temperatures up to 1400 °C. The mean strength values are 178 MPa and 140 MPa at temperatures of 1300 and 1400 °C, respectively.



中文翻译:

莫来石-氧化锆-纤维/钼-基质复合材料:强度和损伤耐受性

通过内部结晶法成功地制备了含有各种比例(包括对应于低共熔物)的莫来石和氧化锆的复合纤维增强的钼基复合材料。该复合材料的特点是具有很高的损伤耐受性:平均缺口敏感性值为0.71,而该参数的最大值接近1。具有低共熔和低共熔纤维成分的复合材料在高达1400°C的温度下具有足够的强度。在1300和1400°C的温度下,平均强度值分别为178 MPa和140 MPa。

更新日期:2018-06-19
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