Results 221 to 230 of about 39,878 (262)

Instability of grain boundary grooves due to equilibrium grain boundary diffusion

Acta Metallurgica et Materialia, 1991
Abstract All previous theoretical investigations on grain boundary grooving are based on the assumption, that the grain boundary does not participate in the material transport. In the present paper it is shown theoretically and experimentally for the first time, that by removing this restriction one obtains completely different groove profiles in ...
Vogel, H.J., Ratke, L.
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The role of partial grain boundary dislocations in grain boundary sliding and coupled grain boundary motion

Journal of Materials Science, 2006
We study the process of grain boundary sliding through the motion of grain boundary dislocations, utilizing molecular dynamics and embedded atom method (EAM) interatomic potentials. For a Σ = 5 [001]{310} symmetrical tilt boundary in bcc Fe, the sliding process was found to occur through the nucleation and glide of partial grain boundary dislocations ...
Joshua Monk, Brian Hyde, Diana Farkas
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Boundary conditions at grain boundaries

Journal of Applied Physics, 1983
Grain boundaries in polycrystalline semiconductor material are frequently idealized as surfaces possessing a characteristic surface recombination velocity. Minority carrier densities generated by external sources (electron beams, light, etc.) in polycrystalline p–n junctions must satisfy certain boundary conditions at these grain boundaries which will ...
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Grains, grain boundaries and interfaces

2004
The topic of grains and grain houndaries is extremely vast and covers many different concepts, involving not only the associated microstructural features, hut also the effects on material characteristics such as corrosion resistance and mechanical properties.
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Grain Boundary Structure and Diffusion Induced Grain Boundary Migration

MRS Proceedings, 1991
AbstractWe present a review of systematic studies of diffusion induced grain boundary migration (DIGM). The results are compared with structural models for the grain boundaries in order to assess the effects of structure upon DIGM. The nucleation of DIGM is also assessed in the light of grain boundary structure and it is demonstrated that changes of ...
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Hyperbolic grain boundaries

Physical Review B, 1987
, Tu, , Smith, , Weiss
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A planetary boundary for green water

Nature Reviews Earth & Environment, 2022
Lan Wang-Erlandsson, Arne Tobian, Ruud J Van Der Ent   +2 more
exaly  

Nonequilibrium boundary-driven quantum systems: Models, methods, and properties

Reviews of Modern Physics, 2022
Gabriel T Landi, Dario Poletti, Gernot Schaller   +2 more
exaly  

Grain Boundary Diffusion and Grain Boundary Phase Transformations

Defect and Diffusion Forum, 1990
Lasar S. Shvindlerman, Boris B. Straumal
openaire   +1 more source

Carrier grain boundary scattering in thermoelectric materials

Energy and Environmental Science, 2022
Chaoliang Hu, Chen-Guang Fu, Xinbing Zhao   +2 more
exaly