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.
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)
出处
《复合材料科学与工程》
北大核心
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)
关键词
氮化硅纤维
石英纤维
三维织物
SiNB
复合材料
性能
silicon nitride fiber
quartz fiber
three-dimensional mixed woven fabric
SiNB
composites
properties
