The preparation and properties of SiO2/Si3N 4 microwave transparent composites

Jinpeng Fan*, Zhongping Li, Dahai Zhang, Zhihai Feng, Jinming Wang, Li Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Quartz fiber reinforced silicon nitride composites were prepared with quartz fabric and polysilazane precursor by precursor infiltration and pyrolysis (PIP) method. The preparation method and dielectric, ablative and mechanical performance of the composites were focused on. It has been found that the composites have stable dielectric constants at room temperature and still have high values at high temperatures. In addition, to overcome the brittle rupture caused by strong bonding between interfaces, a boron nitride was designed and the mechanical properties were improved. The composites obtained by this method are one of excellent high temperature microwave transparent materials.

Original languageEnglish
Title of host publicationInternational Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
Pages5508-5514
Number of pages7
Publication statusPublished - 2008
Externally publishedYes
Event59th International Astronautical Congress 2008, IAC 2008 - Glasgow, United Kingdom
Duration: 29 Sept 20083 Oct 2008

Publication series

NameInternational Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
Volume9

Conference

Conference59th International Astronautical Congress 2008, IAC 2008
Country/TerritoryUnited Kingdom
CityGlasgow
Period29/09/083/10/08

Keywords

  • Dielectric properties
  • Interface
  • Silicon nitride based microwave transparent materials

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