국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Oxidation of C/SiC Composites at Reduced Oxygen Partial Pressures
저자	Opila, Elizabeth J.;; Serra, Jessica
Keyword	CARBON FIBERS;; OXIDATION;; SILICON CARBIDES;; REINFORCING MATERIALS;; PARTIAL PRESSURE;; HYPERSONIC VEHICLES;; VULNERABILITY;; PRESSURE DEPENDENCE;; FLIGHT CONDITIONS;; FINITE ELEMENT METHOD;; VAPOR PHASES;; THIN FILMS;;
URL	http://hdl.handle.net/2060/20100040695
보고서번호	E-17512
발행년도	2009
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Carbon-fiber reinforced SiC (C/SiC) composites are proposed for leading edge applications of hypersonic vehicles due to the superior strength of carbon fibers at high temperatures (greater than 1500 C). However, the vulnerability of the carbon fibers in C/SiC to oxidation over a wide range of temperatures remains a problem. Previous oxidation studies of C/SiC have mainly been conducted in air or oxygen, so that the oxidation behavior of C/SiC at reduced oxygen partial pressures of the hypersonic flight regime are less well understood. In this study, both carbon fibers and C/SiC composites were oxidized over a wide range of temperatures and oxygen partial pressures to facilitate the understanding and modeling of C/SiC oxidation kinetics for hypersonic flight conditions.