Effect of screening singularities on the elastic constants of composition-modulated alloys
- 1 July 1982
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (7), 5265-5268
- https://doi.org/10.1063/1.331361
Abstract
A contribution to the unusual changes of the elastic constants of composition-modulated alloys can be obtained by extending the effects of screening singularities on the atomic pair potential following Krivoglaz and Moss. The formalism is presented, and the effect of the shape of Fermi surface on this elastic anomaly is discussed. Agreement is found between the theory and the observed enhancement of elastic moduli in foils with composition modulations. Predictions are offered as to which systems might produce large and small changes, if this is the major contributing factor.Keywords
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