Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Thermal Stress Analysis of Functuonally Graded Ceramic/Metal Composites(I)-Plasma Spraying Material-

경사기능성 세라믹/금속 복합재료의 열응력 해석(1)-플라즈마 용사재-

  • Song, Jun-Hee (Dept.of Precision Mechanical Engineering, Graduate School of Chonbuk National University) ;
  • Lim, Jae-Kyoo (Dept. of Mech. Design, Chonbuk National Univ.) ;
  • Chung, Se-Hi (Dept.of Precision Mechanical Engineering, Chonbuk National University)
  • 송준희 (전북대학교 대학원 정밀기계공학과) ;
  • 임재규 (전북대학교 기계설계학과) ;
  • 정세희 (전북대학교 정밀기계공학과)
  • Published : 1997.01.01
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Abstract

A traditional notion of composites has been composed as a uniform dispersoid, but now it is proposed without regard to such rule with process development. Functionally Graded Material(FGM) consists of a new material design that is to make intentionally irregular dispersion state. In this study, thermal stress analysis of plasma spraying PSZ/NiCrAlY gradient material was conducted theoretically using a finite-element program. A formations of the model are direct bonding material(NFGM) and FGM with PSZ and NiCrAlY component element. The temperature conditions were $700^{\circ}C$ to 1100.deg. C assuming a cooling-down precess up to room temperature. Fracture damage mechanism was analyzed by the parameters of residual stress.

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