混编氮化硅纤维增强SiNB复合材料性能研究  

Study on the properties of mixed silicon nitride fiber reinforced SiNB matrix composites

作　　者：柴笑笑 樊林峰 郎子轩 彭喆 CHAI Xiaoxiao;FAN Linfeng;LANG Zixuan;PENG Zhe(Beijing Composite Materials Co.,Ltd.,Beijing 102101,China;Beijing Institute of Space Long March Vehicle,China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]北京玻钢院复合材料有限公司,北京102101 [2]中国运载火箭技术研究院北京航天长征飞行器研究所,北京100076

出　　处：《复合材料科学与工程》2024年第S1期1-5,共5页Composites Science and Engineering

基　　金：特种纤维复合材料国家重点实验室应用基础性研究项目(YJ2018SYS03);中国建材集团攻关专项资助(2021YCJS02-02)

摘　　要：本研究以连续氮化硅纤维(Si_(3)N_(4))与石英纤维(SiO_(2))混编编织的三维织物为增强体,SiNB陶瓷(SiNB)为基体,采用先驱体浸渍裂解法(PIP)工艺制备了三维混编纤维增强SiNB基复合材料。探究了不同裂解温度下Si_(3)N_(4)-SiO_(2)/SiNB复合材料的拉伸性能、介电性能,并对复合材料断口和烧蚀形貌进行分析。研究表明:Si_(3)N_(4)-SiO_(2)/SiNB具有优异的拉伸性能、介电性能和较好的抗烧蚀性能,在1000℃下,Si_(3)N_(4)-SiO_(2)/SiNB-1200的高温拉伸强度相对于常温拉伸强度保留了73.3%。In this study,three-dimensional mixed woven fabric of continuous silicon nitride fiber(Si_(3)N_(4))and quartz fiber(SiO_(2))as a enhanced body,and SiNB ceramics(SiNB)as the base,and three-dimensional mixed fiber reinforced SiNB matrix composite was prepared by precursor impregnation and cracking method(PIP).The tensile and dielectric properties of Si_(3)N_(4)-SiO_(2)/SiNB composites at different pyrolysis temperatures were investigated,and the fracture and ablation morphology of the composites were analyzed.The results show that Si_(3)N_(4)-SiO_(2)/SiNB has excellent tensile properties,dielectric properties and good ablative properties.At 1000℃,the tensile strength of Si_(3)N_(4)-SiO_(2)/SINB-1200 at high temperature retains 73.3%compared with that at normal temperature.

关 键 词：氮化硅纤维 石英纤维 三维织物 SiNB 复合材料 性能 

分 类 号：TB332[一般工业技术—材料科学与工程]