- Volume 21 Issue 10
The development of a new material which should be continuously use under severe environment of very high temperature has been urgently requested. For the development of such super-heat resistant materials, the main problem is not only to make the superior thermal barrier properties but also to actively release thermal stress. So, a new concept of functionally graded material(FGM) has been proposed to overcome this problem. A composition and microstructure of FGM are varied continuously from place to place in ways designed to provide it with the maximum function of mitigating the induced thermal stress. So, FGM can be applied in the aerospace, the electronic and the medical field, etc.. In this study, thermal stress analysis of sintering PSZ/NiCrAlY graded material was conducted theoretically using a finite-element program. The temperature condition was sintering temperature assuming a cooling-down process up to room temperature. Fracture damage mechanism was anlayzed by the parameters of residual stress. It could be known that FGM provided with the function of mitigating the induced thermal stress.
Functionally Graded Material;Thermal Stress Analysis;Sintering;Residual Stress;Axial Stress;Radial Stress;Hoop Stress;Shear Stress
- 粉體および粉未冶金 v.37 no.2 傾斜機能材料の開發 新野正之
- 대한기계학회논문집(A) v.20 no.7 경사기능성 세라믹/금속 복합재료의 열충격특성에 관한 연구 송준희, 임재규
- Thin Solid Films v.95 Failure Mechanisms of Thermal Barrier Coatings Exposed to Elevated Temperatures Miller, R. A.;Lowell, C. E.
- J. Soc. Mat. Sci. Jppan v.41 no.469 傾斜組成コ-ティンダ 伊藤義康;高橋雅士;宮崎松生;柏谷英夫
- J. Am. Ceram. Soc. v.72 no.7 Hot-Gas-Jet Method and Apparatus for Thermal-Shock Testing Wei, G. C.;Walsh, J.
- Materials Science and Technology v.2 Plasma Spray Coationg Process Gill, B. J.;Tucker, Jr. R. C.
- 日本機械學會論文集 v.57 no.542 傾斜機能材料の熱應力緩和特性に及ぼす影響 加藤眞一郞;橋田俊之;高橋秀明
- 工業調査會 傾斜機能材料 社團法人 未踏科學技術協會
- 한국복합재료학회 춘계학술대회 논문집 세라믹/금속 소결 경사기능재료의 열응력해석 송준희;임재규;정세희
- 復素化による機能發現と熱應力緩和のための基礎技術に關する調社團報告書 科學技術渡報財團
- J. Jpn. Soc. Comp. Mater. v.13 no.1 The Functionally Gradient Materials Niino, M.;Hirai, T.;Watanabe, R
- 한국복합재료 추계학술대회 논문집 경사기능성 세라믹/금속 복합재료의 열응력해석 송준희;임재규;정세희