2003/10/16 by Mikhail Belogolovskii, Gennadij Akimov, G. V. Akimov +7
Engineering · Materials Science · Physics and Astronomy · #Adhesion, Friction, and Surface Interactions #FOS: Physical sciences #Fluid Dynamics and Thin Films #Materials Science (cond-mat.mtrl-sci) #Solidification and crystal growth phenomena #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0310395
submitted to the proceedings of the Tenth International Symposium on Continuum Models and Discrete Systems (CMDS10), Shoresh, Israel, 30 June - 4 July 2003
arxiv created 2003/10/16 · openalex publication_date 2003/10/16 · arxiv updated 2009/12/01 · openalex created_date 2022/10/06 · openalex updated_date 2026/07/28
We investigate the effect of external stresses on structural and mechanical properties of a strained damaged thin layer by developing a continuum phase-field mesoscale model based on the introduction of an order parameter field, the defect concentration, coupled with a displacement field. We find that even in the case of an initially uniform distribution of point defects external stresses drive the nucleation of local regions with higher concentration of vacancies or self-interstitials than their average value over the film. The effect can explain our experimental findings relating generation of highly heterogeneous regions in cobalt disilicide film fabricated in self-aligned processing on a silicon surface as well as improvement of fracture toughness in a tetragonal zirconia ceramics with oxygen vacancies.