Stress envelope of silicon carbide composites at elevated temperatures
野澤 貴史; Kim, S.*; 小沢 和巳; 谷川 博康
Nozawa, Takashi; Kim, S.*; Ozawa, Kazumi; Tanigawa, Hiroyasu
A SiC/SiC composite is a promising candidate material for the advanced fusion DEMO blanket. For the design of the DEMO, the stability of high-temperature strength of SiC/SiC composites needs to be identified. Additionally, strength anisotropy needs to be clarified because of its unique fabric architecture. This study therefore aims to evaluate mechanical properties by various modes at elevated temperatures, eventually providing a stress envelope for the design. A P/W Tyranno-SA3 fiber reinforced CVI SiC matrix composite with multilayered SiC/PyC interface was evaluated in this study. Tensile and compressive tests were conducted by the SSTT specifically arranged for the high-temperature use. In-plane shear properties were contrarily estimated by the off-axial tensile method assuming that the mixed mode failure criterion is valid for composites. All tests were performed in vacuum. The preliminary test results indicate no degradation of both proportional limit stress (PLS) and the ultimate tensile strength at temperatures below 1000$$^{circ}$$C. Similarly, no significant degradation of high-temperature compressive and in-plane shear properties were identified, finally providing the stress envelope at elevated temperatures for the design.
使用言語 : English
掲載資料名 : Fusion Engineering and Design
: 89
: 7-8
ページ数 : p.1723 - 1727
発行年月 : 2014/10
出版社名 : Elsevier
発表会議名 : 11th International Symposium on Fusion Nuclear Technology (ISFNT-11)
開催年月 : 2013/09
開催都市 : Barcelona
開催国 : Spain
特許データ :
論文URL :
キーワード : no keyword
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : BB20131223
抄録集掲載番号 : 42001064
論文投稿番号 : 14708
Accesses  (From Jun. 2, 2014)
- Accesses
Add This