Residual stress distribution in a functionally graded alumina-silicon carbide material

SCRIPTA MATERIALIA

卷:67

Article

Dancer, C. E. J.¹  Achintha, M.²  Salter, C. J.¹  Fernie, J. A.^1,3  Todd, R. I.¹ 

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

[3] Ceram Joining Ltd, Reading RG8 8HA, Berks, England

关键词: Functionally graded materials;    Ceramics;    Residual stresses;    Modelling;   

DOI  :  10.1016/j.scriptamat.2012.05.002

来源: Elsevier

【 摘 要 】

Functionally graded ceramic structures have a range of potential applications as they enable the exploitation of two ceramic materials with very different properties, such as coefficient of thermal expansion. We report the microstructural investigation of a novel functionally graded structure for alumina and silicon carbide with systematically varied composition. Stresses in the structure have been modelled analytically and by finite-element modelling, and are consistent with fluorescence microscopy measurements of residual stress in the structure. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free