grain boundary


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Related to grain boundary: Grain growth, Twin boundary

grain boundary

[′grān ‚bau̇n·drē]
(solid-state physics)
An interface between individual crystals in a polycrystalline solid.
References in periodicals archive ?
This first one is a stored volume energy that acts uniformly in every portion of the affected grain that is being swept by a moving grain boundary. During such cases, the stored energy can frequently be simplified and written in scalar form.
A grain boundary enriched by Ni, Mn, P, Si, and C can be easily seen in the image of the specimen after segregation provoking treatment (Figure 4(b)).
Based on the equivalence of grain boundary migration and single-site switches in the Potts model, during one Monte Carlo step, the grain boundary between two adjacent grains is displaced over a distance [DELTA].
Clarysse et al., "Surface and grain boundary scattering studied in beveled polycrystalline thin copper films," Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, vol.
Figure 8 shows small size cracks and in-tact portion (size in few micrometers) on the grain boundary. We observe many extrusions on the grain a.
In the first case, the critical stresses for the grain interior elements are much higher such that only the grain boundary elements fail.
Considering the Sn[O.sub.2] varistor microstructure, a Schottky-type electrical barrier may be ascribed as the most likely barrier at the Sn[O.sub.2] grain boundary, since no inter-granular insulating layer separating two Sn[O.sub.2] grains was observed in SEM.
Grain boundary engineering can be used to improve the properties of a material by manipulating the grain boundary character via themomechanical processing.
The researchers reported that gold nanomesh electrodes, produced by the novel grain boundary lithography, increase resistance only slightly, even at a strain of 160 percent, or after 1,000 cycles at a strain of 50 percent.
The fine grain samples indicate a lower oxidation rate that shows that the fine grains promotes the higher grain boundary path that was act as a diffusion path of ion across the metal-gas surface.
To specify a grain boundary, five parameters are needed in general.