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TECHNICAL PAPERS

Estimation of Steady-State Creep Behavior of Al2O3/YAG Eutectic Composite by Image-Based Finite Element Analysis

[+] Author and Article Information
Noriyuki Miyazaki, Toru Ikeda, Toshihiro Komura

Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 812-8581 Japan

J. Eng. Mater. Technol 125(3), 277-282 (Jul 10, 2003) (6 pages) doi:10.1115/1.1555657 History: Received December 19, 2001; Revised October 28, 2002; Online July 10, 2003
Copyright © 2003 by ASME
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References

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Figures

Grahic Jump Location
Microstructure of the Al2O3/YAG eutectic composite taken by a SEM (dark regions: Al2O3 single crystal, light regions: YAG single crystal)
Grahic Jump Location
Comparison of the steady state creep strain rate for the single crystals between the experimental data and the analytical results obtained from the steady state creep constitutive equations: (a) Al2O3 single crystal, and (b) YAG single crystal
Grahic Jump Location
Microstructure of the Al2O3/YAG eutectic composite used in the image-based finite element analysis (dark regions: Al2O3 single crystal, light regions: YAG single crystal)
Grahic Jump Location
Microstructure of the Al2O3/YAG eutectic composite after image processing (black regions: Al2O3 single crystal, white regions: YAG single crystal)
Grahic Jump Location
Finite element analysis model
Grahic Jump Location
An example of the creep curve obtained from the finite element analysis (T=1773 K,σ=400 MPa)
Grahic Jump Location
Comparison of the steady state creep strain rate for the Al2O3/YAG eutectic composite between the experimental data and the results of image-based finite element analysis: (a) 1773 K, (b) 1873 K, and (c) 1973 K
Grahic Jump Location
Comparison of the steady state creep strain rate for the Al2O3/YAG eutectic composite among the experimental data, the analytical results obtained from the steady state creep constitutive equation, and the results of the image-based finite element analysis
Grahic Jump Location
An example of microstructure of the Al2O3/YAG eutectic composite made by image processing (black regions: Al2O3 single crystal, white regions: YAG single crystal)
Grahic Jump Location
Variations of the parameters in the steady state creep constitutive equation with the volume fraction of the YAG: (a) n, (b) E*, and (c) k
Grahic Jump Location
Comparison of the steady state creep strain rate for the Al2O3/YAG eutectic composite among the experimental data, the analytical results obtained from the steady state creep constitutive equation and the results of the image-based finite element analysis (T=1773 K)
Grahic Jump Location
Comparison of the steady state creep strain rate for the Al2O3/YAG eutectic composite among various types of law of mixture and the results of the image-based finite element analysis (T=1773 K,VY=59 percent)

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