无机材料学报2013，Vol.28Issue(6)：605-610,6.DOI:10.3724/SP.J.1077.2013.12450
聚合物浸渍裂解法制备C/C-ZrC-SiC-ZrB2复合材料及其性能研究
Preparation and Properties of C/C-ZrC-SiC-ZrB2 Composites via Polymer Infiltration and Pyrolysis
摘要
Abstract
C/C-ZrC-SiC-ZrB2 composites were prepared by precursor infiltration and pyrolysis (PIP) process using a mixture solution of organic ZrC,ZrB2 precursor and polycarbosilane as precursor.Microstructure,flexural property and ablation behavior of the composites were studied.The results show that the composites produced by PIP have a homogeneity distribution of ceramic phase.The flexural strength of the composites is 126.31 MPa.There are a large number of carbon fiber bundles pulled-out,and the composites exhibit a pseudo-plastic fracture behavior.After ablated for 120 s by oxyacetylene flame,the composites show no significant ablation,and their linear and mass ablation rates are-2.50×10-4 mm/s and-1.33×10-4 g/s,respectively.Different kinds of protective coatings form on the different regions of ablated surface,which can not only reduce the diffusion of oxygen and heat but also remedy defects effectively,and thereby greatly improves the ablation resistance of the composites.关键词
聚合物浸渍裂解法/C/C-ZrC-SiC-ZrB2复合材料/力学性能/烧蚀Key words
polymer infiltration and pyrolysis/ C/C-ZrC-SiC-ZrB2 composites/ mechanical property/ ablation分类
通用工业技术引用本文复制引用
解静,李克智,付前刚,李贺军,姚西媛..聚合物浸渍裂解法制备C/C-ZrC-SiC-ZrB2复合材料及其性能研究[J].无机材料学报,2013,28(6):605-610,6.基金项目
国家自然科学基金(910160029 （）
50902111) （）
National Natural Science Foundation of China (910160029,50902111) （910160029,50902111）
