TiB_2增强SiC基复合材料的研究进展  

Research Progress of SiC Matrix Composites Reinforced by TiB_2

作　　者：胡继林[1,2] 胡传跃[1] 刘鑫[1] 郭文明[2] 

机构地区：[1]湖南人文科技学院化学与材料科学系,娄底417000 [2]湖南大学材料科学与工程学院,长沙410082

出　　处：《人工晶体学报》2013年第11期2471-2475,共5页Journal of Synthetic Crystals

基　　金：湖南省科技计划项目(2011FJ3160);湖南省教育厅科学研究重点项目(13A047)

摘　　要：SiC陶瓷由于具有高温强度高、抗氧化性能好、热导率高、化学稳定性好等优异的综合性能,已成为极有吸引力的磨损和高温结构材料,但较低的室温强度和断裂韧性以及对缺陷的高度敏感性限制了其应用范围。在SiC基体中添加过渡金属硼化物或碳化物是解决这些问题的有效方法之一。本文综述了国内外在TiB2增强SiC基复合材料方面的研究进展,并展望了该体系复合材料今后研究的重点方向。Silicon carbide （SiC） possesses an unique combination properties, such as high temperature strength, good oxidation resistance, high thermal conductivity and extreme chemical stability, all of which make it an attractive structural material for various applications, especially those requiring abrasion resistance and high temperatures. However, the application of SiC ceramics is limited by its low room- temperature strength, poor fracture toughness and high flaw sensitivity. Introduction of a transition metal boride or carbide as a dispersed phase into the SiC matrix is an effective method to solve these problems. In this paper, the latest research progress in TiB2 reinforced SiC matrix composites in recent years is summarized. Simultaneously, the future development on the TiB2-SiC composites is prospected.

关 键 词：TIB2 SIC 复合材料 进展 

分 类 号：TQ174[化学工程—陶瓷工业]