Grain

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Related to Grain boundary: Grain growth, Twin boundary

GRAIN, weight. The twenty-fourth part of a pennyweight.
     2. For scientific purposes the grain only is used, and sets of weights are constructed in decimal progression, from 10,000 grains downward to one hundredth of a grain.

GRAIN, corn. It signifies wheat, rye, barley, or other corn sown in the ground In Pennsylvania, a tenant for a certain term is entitled to the way- going crop. 5 inn. 289, 258; 2 Binn. 487; 2 Serg. & Rawle, 14.

References in periodicals archive ?
The drawing force of secondary recrystallization normally arises from grain boundary energy below special circumstances; the surface energy of the grains can contribute [13].
Watanabe, "The impact of grain boundary character distribution on fracture in polycrystals," Materials Science and Engineering: A Structural Materials: Properties, Microstructure and Processing, vol.
Valiev, "Grain boundary diffusion characteristics of nanostructured nickel," Scripta Materialia, vol.
It should be noted that segregation provoking treatment was carried out in such a way that the studied steel was exposed to the temperature within the range of maximum temper embrittlement during practically achievable time for maximum grain boundary segregation.
where [delta] is the Kronecker delta function with [delta] ([S.sub.k], [S.sub.m]) =1 if [S.sub.k] = [S.sub.m] and 0 otherwise and [J.sub.km] is a positive constant that represents the grain boundary (km) energy.
where R is the grain boundary reflection coefficient and D is the mean grain size width.
There observed both the deeply attacked grain boundary and not attacked boundary.
The elastoplastic case (Figure 8(d)) follows the identical crack trajectory until the triple junction, beyond which another grain boundary branch is chosen.
In being able to see single atoms and analyse nanoscale regions of material using the electron microscope, the researchers can see the grain boundary that is ahead of the proceeding corrosion path.
The US patent titled 'Enhancing Critical Current Density of Cuprate Superconductors' reveals a method for improving the critical current density in superconductors by restricting the movement of Abrikosov (A) vortices, Josephson (J) vortices, or Abrikosov-Josephson (A-J) vortices using the half integer vortices associated with the d-wave symmetry present in the grain boundary.
One can try to gain sufficient understanding of grain boundary phenomena so as to control them.
where [V.sub.b] is the voltage per barrier at the grain boundary, [E.sub.B] is the breakdown electrical field and [N.sub.b] is the number of effective barriers (Equation 2).