工程陶瓷连接力学性能提升研究进展

发布时间：2018-06-22 20:43

本文选题：工程陶瓷 + 连接结构　；参考：《中国材料进展》2017年02期

【摘要】：当前科学技术的迅速发展对工程材料的性能提出了越来越严苛的要求。工程陶瓷具有高强高硬、优异的高温性能以及耐腐蚀等众多优势,已逐渐代替传统的工程金属材料,被应用于一些极端环境下的各种工程结构中,而陶瓷材料的连接成为该材料成功使用的关键技术之一。但是现有陶瓷接头性能相对于母材较低,导致工程陶瓷连接结构性能不高主要有两大原因,即陶瓷基体弹性应变能的积累和界面脆性反应层生成。分别综述了近年来不断涌现的缓解陶瓷基体弹性应变能和控制界面脆性反应层厚度的各种工艺方法,具体分析了每项工艺方法的理论机理、适用条件、使用范例以及不足。并对进一步提高工程陶瓷连接结构力学性能的理论研究和工艺方法进行了展望。
[Abstract]:With the rapid development of science and technology, the performance of engineering materials is more and more demanding. Engineering ceramics have many advantages, such as high strength and high hardness, excellent high temperature performance, corrosion resistance and so on. They have gradually replaced the traditional engineering metal materials, and have been used in various engineering structures in some extreme environments. The bonding of ceramic materials has become one of the key technologies for its successful use. However, there are two main reasons for the low performance of ceramic joints compared with the base metal, that is, the accumulation of elastic strain energy of ceramic matrix and the formation of brittle reaction layer at interface. In this paper, the various techniques for relieving elastic strain energy of ceramic matrix and controlling the thickness of interface brittle reaction layer are reviewed respectively. The theoretical mechanism, applicable conditions, application examples and shortcomings of each process are analyzed in detail. The theoretical research and technological methods for further improving mechanical properties of engineering ceramic connection structure are prospected.
【作者单位】：哈尔滨工业大学先进焊接与连接国家重点实验室;肯塔基大学工程学院;
【基金】：国家自然基金(51474081,51475103) 黑龙江省杰出青年基金(JC2015011)
【分类号】：TQ174.75

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