Grain boundary diffusion patterns under nonequilibrium and migration of grain boundaries in nanoctructure materials. (English. Russian original) Zbl 1181.82057
Bull. Russ. Acad. Sci., Phys. 73, No. 9, 1277-1283 (2009); translation from Izv. Ross. Akad. Nauk, Ser. Fiz. 73, No. 9, 1348-1354 (2009).
Summary: The model of grain boundary diffusion from a permanent source along nonequilibrium migratory grain boundaries is considered. Grain boundary nonequilibrium is characterized by a value of boundary excess energy up to which relaxation goes. It is shown increasing excess energy and migration velocity of nonequilibrium boundaries lead to increasing diffusant volume penetrating into a sample during annealing time.
MSC:
| 82C70 | Transport processes in time-dependent statistical mechanics |
| 76R50 | Diffusion |
| 82D80 | Statistical mechanics of nanostructures and nanoparticles |
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