Thermoelastic behavior of grain-boundary superlattices
- 15 December 1992
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 72 (12) , 5606-5615
- https://doi.org/10.1063/1.351960
Abstract
The thermal-expansion coefficients of superlattices of twist grain boundaries on the (100) plane in fcc Cu and Au are calculated using a generalization of the Grüneisen relation. A strong anisotropy in the in-plane and out-of-plane thermal-expansion coefficients is found. The thermal expansion of these superlattices is found to be determined from a complex interplay of the structural disorder arising from the interfaces with the associated zero-temperature lattice-parameter changes. The relationship between the thermal expansion and the elastic properties is explored.This publication has 22 references indexed in Scilit:
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