Enhancement of the Mechanical Performance of SiCf/Phenolic Composites after High-temperature Pyrolysis Using ZrC/B_(4)C Particles  

作　　者：DING Jie LI Yan SHI Minxian HUANG Zhixiong QIN Yan ZHUANG Yingluo WANG Cunku 

机构地区：[1]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第6期1262-1268,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Joint Fund of Ministry of Education for Equipment Pre-research(No.6141A02022250);the Fundamental Research Funds for the Central Universities,China(No.WUT:2021III003XZ)。

摘　　要：The composites were prepared by modifying silicon carbide fiber with particles of zirconium carbide(ZrC)and boron carbide(B_(4)C)and incorporating them into a phenolic resin matrix.The influence of ZrC and B_(4)C on the mechanical performance of SiCf/phenolic composites after high-temperature pyrolysis was studied through flexural performance test.The results show that the composite material has good thermal stability and high-temperature mechanical properties.After static ablation at 1400℃ for 15 minutes,the flexural strength of the composite material reaches 286 MPa,which is still 7.3%higher than at room temperature,indicating that the composite material still has good mechanical properties even after heat treatment at 1400℃.

关 键 词：SiC fiber phenolic resin mechanical performance high-temperature pyrolysis 

分 类 号：TB332[一般工业技术—材料科学与工程]