摘要   有σ-共轭结构特点的聚硅烷有着特殊的性能及用途。概述了聚硅烷作为陶瓷先驱体在制备陶瓷纤维、多孔陶瓷、陶瓷基复合材料3个方面的应用研究进展，并针对目前存在的不足指出了今后的研究方向。
    关键词    聚硅烷 陶瓷先驱体 陶瓷纤维 多孔陶瓷 陶瓷基复合材料  

Research Progress in Polysilane Ceramic Precursors
LI Xin, SUN Zhengguang, LIAO Yijun, HUANG Shiqiang
( Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062)

    Abstract    Polysilanes with σ-conjugated structure have special properties and purposes. In this article the recent research progress in preparations and properties of polysilane ceramic precursors is reviewed, which are used in the preparation of ceramic fibers, porous ceramic and ceramic matrix composite. The achievement are summarized with emphasis. Aiming at the existing defects, the development prospects are pointed out.  
    Keywords     polysilane, ceramic precursor, ceramic fibers, porous ceramic, ceramic matrix composite