有机前驱体中添加ZrB_2和SiC微粉制备C_f/SiC-ZrB_2复合材料  

Preparation of C_f/SiC-ZrB_2 Composites by Adding ZrB_2 and SiC Powders in Organic Precursors

作　　者：姜凯[1] 王艳艳[1] 周长灵[1] 綦育仕 杨芳红[1] JIANG Kai;WANG Yan-Yan;ZHOU Chang-Ling;YANG Fang-Hong;QI Yu-Shi(Shandong Research and Design Institute of Industrial Ceramics Co., Ltd., Zibo 255000, China;School of Materials Science and Engineering, Harbin Institute of Technology , Harbin 150006, china)

机构地区：[1]山东工业陶瓷研究设计院有限公司,山东淄博255000 [2]哈尔滨工业大学材料科学与工程学院,哈尔滨150006

出　　处：《现代技术陶瓷》2016年第6期403-411,共9页Advanced Ceramics

摘　　要：通过在有机前驱体溶液中加入惰性填料ZrB_2和SiC微粉,制备了C_f/SiC-ZrB_2复合材料。分别研究了三组不同含量的料浆对复合材料浸渍裂解效果的影响,并借助扫描电镜(SEM)和能谱分析(EDS)对制备的Cf/SiC-ZrB2复合材料的微观结构和元素组成进行了分析。研究表明:在有机前驱体溶液中添加无机粉体浸渍复合材料能够起到缩短制备周期、提高材料强度的目的。当加入惰性填料的质量分数为15%时,能够在8个制备周期内将复合材料的密度快速提升到2.0g?cm^(-3),而且制备的材料内部结构致密,力学性能优异。Cf/SiC-ZrB2 composites were prepared by polymer impregnation and pyrolysis with an organic precursor solution containing inert filler ZrB2 and SiC powder. The microstructure and elemental composition of the prepared Cf/SiC-ZrB2 composites were analyzed by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS). The study shows that the addition ofinorganic powder in the organic precursor solution can shorten the period of preparation and improvethe strength of the material. When the mass fraction of the inert filler is 15%, the density of the composite material can be rapidly enhanced to 2.0 g?cm-3 in eight period of preparation. Moreover,the internal structure of the prepared material is very dense, and the mechanical properties are excellent.

关 键 词：加粉浸渍 Cf/SiC-ZrB2复合材料 前驱体浸渍裂解 

分 类 号：TB35[一般工业技术—材料科学与工程]