【作者】 陈元锋； 阎兴斌； 胡丽天； 朱福良； 薛群基；

【Author】 Yuanfeng Chen~(1,2),Xingbin Yan~1,Fuliang Zhu~2,Qunji Xue~1 1(State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Science,Lanzhou 730000,China) 2(Department of Material Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

【机构】 中国科学院化学物理研究所； 兰州理工大学材料学院；

【摘要】 超高温陶瓷具有高的化学稳定性,良好的抗氧化性和高温机械性能,但其制备困难,一般是在1900℃以上热压烧结制备。近年来出现的聚合物前躯体转化法制备超高温陶瓷,以其独特的合成路径,可控的微观结构和微观组分等优点,使超高温陶瓷在较低温度下制备成为可能。本文综述了国内外关于聚合物前躯体转化法制备超高温陶瓷的情况,并对其进行展望。更多还原

【Abstract】 Ultra-high temperature ceramics with high chemical stability,good oxidation resistance and high temperature mechanical properties are difficult to sinter due to the strong bonds of such materials and low diffusion coefficient at high temperature.Traditionally,these ceramics are fabricated by hot-pressing at a high temperature over 1900℃.Recently,polymer-derived ultra-high temperature ceramics makes ultra-high temperature ceramics preparation possible at low temperature, with its unique synthesis path,controlled microstructure and micro-components.In this paper,we discussed the present research and the prospects of polymer-derived ultra-high temperature ceramics.更多还原