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随着工业技术的发展,对材料的要求越来越多样化。用于空前严酷环境的材料急待开发。在这种情况下,陶瓷材料作为高温结构材料显露头角。它不锈蚀,比金属轻而硬,具有1000℃以上的耐热性及高温强度,且资源丰富。但陶瓷性脆,在曾经产生过裂纹的地方,应力集中能使其瞬间破坏。要是裂纹已有所扩展,稍加应力就会使裂纹迅速扩大以至破坏。为了改善陶瓷的脆性进行了很多的尝试。其中之一是用高强度、高模量纤维与陶瓷复
With the development of industrial technology, the requirements of materials are more and more diversified. Materials for an unprecedented harsh environment are in urgent need of development. In this case, the ceramic material is exposed as a high-temperature structural material. It is not rusty, light and hard than metal, with heat resistance and high temperature strength above 1000 ℃, and rich in resources. However, the brittle ceramic, cracks have occurred in the place, the stress concentration can make it instantly destroyed. If the crack has been expanded, a little stress will make the crack quickly expanded and even destroyed. A lot of attempts have been made to improve the brittleness of ceramics. One of them is the use of high strength, high modulus fiber and ceramic complex