引用本文:
【打印本页】   【HTML】   【下载PDF全文】   【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 113次   下载 67 本文二维码信息
码上扫一扫!
分享到: 微信 更多
透波氮化硅纤维的综合性能评价表征研究
张娟1,周明星2,张敬义1,周军1,张大海1
1.航天材料及工艺研究所, 北京 100076;2.湖北航天技术研究院总体设计所,武汉 430040
摘要:
系统研究了氮化硅纤维的基本物理性能、力学性能和介电性能,并且探究了各性能的测试方法。结果表明,氮化硅纤维在1 500 ℃的高温强度保留率达到50%以上,介电常数为6.0左右,说明氮化硅纤维可以作为透波材料在苛刻的高温环境下长时使用。
关键词:  氮化硅纤维  评价表征  力学强度  介电性能
DOI:10.12044/j.issn.1007-2330.2019.04.014
分类号:TB34
基金项目:
Characterization and Properties of New Silicon Nitride Fibers for Wave-Transmitting
ZHANG Juan1,ZHOU Mingxing2,ZHANG Jingyi1,ZHOU Jun1,ZHANG Dahai1
1.Aerospace Research Institute of Materials and Processing Technology, Beijing 100076;2.The General Design Institute of Hubei Aerospace Technology Research Academy, Wuhan 430040
Abstract:
The properties and characterization methods of silicon nitride fibers were investigated, including basic physical properties, diameter, tensile strength and dielectric property. The results indicated that the tensile strength of silicon nitride fibers after treating at 1500℃ was remained above 50% of the original fibers, and the dielectric constant was about 6.0. The results showed that silicon nitride fibers could be used for long time and elevated temperature application.
Key words:  Silicon nitride fibers  Characterization  Tensile strength  Dielectric property