Oxidation behavior of SiC/SiC composites for helium cooled solid breeder blanket

Autor:	N. Otake, A. Yoshikawa, Manabu Satou, Akira Hasegawa, Shuhei Nogami, Yutai Katoh, Kenji Okuno, Yasuhisa Oya
Rok vydání:	2008
Předmět:	Thermogravimetric analysis Materials science Mechanical Engineering Weight change chemistry.chemical_element Blanket Breeder (animal) Nuclear Energy and Engineering chemistry General Materials Science Graphite Composite material Formation rate Helium Civil and Structural Engineering
Zdroj:	Fusion Engineering and Design. 83:1490-1494
ISSN:	0920-3796
DOI:	10.1016/j.fusengdes.2008.06.004
Popis:	In order to evaluate the oxidation behavior and mechanism of SiC/SiC composites with conventional pyrolitic graphite interface (PyC-SiC/SiC) and advanced multilayer interface (ML-SiC/SiC) in a HCSB blanket environment, a thermal gravimetric analysis (TGA) in He + O2 environment at 1000 °C and 1200 °C was performed. The PyC-SiC/SiC at 1200 °C and the ML-SiC/SiC at 1000 °C and 1200 °C showed relatively smaller weight change during oxidation because SiO2 formed on the SiC-matrix and SiC-fiber sealed the specimen surface before the PyC interface recession by gasification of graphite due to relatively high SiO2 formation rate. While the PyC-SiC/SiC at 1000 °C showed significant weight loss because the specimen surface was not sealed by SiO2 and significant PyC interface recession occurred due to relatively slow SiO2 formation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ab1aff94de444db5b8729380d9c4f94 https://doi.org/10.1016/j.fusengdes.2008.06.004 Zobrazit plný text záznamu Full Text from ScienceDirect