Strain compensation by twinning in Au thin films: Experiment and model

被引：24

作者：

Dehm, G.

Oh, S. H.

Gruber, P.

Legros, M.

Fischer, F. D.

机构：

[1] Austrian Acad Sci, Erich Schmid Inst Mat Sci, Dept Mat Sci, A-8700 Leoben, Austria

[2] Univ Stuttgart, Inst Phys Met, Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[3] CNRS, CEMES, F-31055 Toulouse, France

[4] Univ Leoben, Inst Mech, A-8700 Leoben, Austria

来源：

ACTA MATERIALIA | 2007年 / 55卷 / 19期

关键词：

size effect; twinning; thin films; TEM; modeling;

D O I：

10.1016/j.actamat.2007.08.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Epitaxial Au thin films with thicknesses of 40-160 nm were grown on (100)-oriented single-crystal NaCl substrates at 300 degrees C by magnetron sputtering. Microstructural analyses revealed that all films possess orthogonal twin networks along the < 011 > directions. The experimentally observed relationship of an increase in twin density with decreasing film thickness is explained by kinematical and thermodynamical modeling. The developed twin model predicts a nanometer-sized width of the twins, in agreement with the experiment. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6659 / 6665

页数：7

共 27 条

[1] Thermodynamics of polydomain heterostructures. III. Domain stability map [J].