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Dimension and Damage Control in Sintering of Multilayer Powder Composites

Published online by Cambridge University Press:  01 February 2011

Eugene A. Olevsky ,
Andrey L. Maximenko ,
John H. Arterberry  and
Veena Tikare
Eugene A. Olevsky
Affiliation:
Mechanical Engineering Department San Diego State University 5500 Campanile Drive, San Diego, CA 92182-1323
Andrey L. Maximenko
Affiliation:
Mechanical Engineering Department San Diego State University 5500 Campanile Drive, San Diego, CA 92182-1323
John H. Arterberry
Affiliation:
Mechanical Engineering Department San Diego State University 5500 Campanile Drive, San Diego, CA 92182-1323
Veena Tikare
Affiliation:
Sandia National Laboratories Albuquerque, NM 87185
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Abstract

Sintering distortions of two and three-layer composite powder structures are determined based upon the continuum theory of sintering implemented in a finite element computer code. The macroscopic constitutive parameters of the powder material are obtained on the basis of the meso-scale simulations of a realistic grain-pore structure. The model follows both the densification and the damage development during sintering using a new fracture criterion for the prediction of macroscopic strength in sintering.

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References

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