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Ideal Cleavage Fracture of Transition-Metal Silicides: A Comparison Analysis

Published online by Cambridge University Press:  10 February 2011

M. H. Yoo  and
K. Yoshimi
M. H. Yoo
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6115, USA, yoo@oml.gov
K. Yoshimi
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6115, USA, yoo@oml.gov
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Abstract

A simple empirical model for the ideal cleavage energy, resulting from a rigid-body separation, is proposed in terms of four variables, viz., the elastic stiffness constant, the interplanar spacing, and two adjustable length parameters. The ratio of these parameters is assessed based on the available results of ab-initio slab-supercell calculations. Ideal cleavage energies and stress intensity factors of transition-metal silicides are estimated, and the available fracture toughness data are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK6.6.1
Copyright
Copyright © Materials Research Society 1999

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