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 ?
specular interface scattering; while the mean free path is important for estimating the mean free path reduction due to the grain boundary scattering.
A sampling of topics: the texture of thin NiSi films and its effect on agglomeration, study of texture evolution at high strain rates in FCC materials, three-dimensional FIB-OIM of ceramic materials, tentative simulation of crystal rotation for NaCl structures, grain boundary patterns in dynamically recrystallized quartz aggregates, annealing texture evolution, texture and anisotropy of MP34N wire for conduct leads, texture and micro-hardness evolution of submicrograined copper, and a model of plastic spin taking into account grain interaction during rolling.
EBS3 users are now able to obtain a wealth of crystallographic information from a sample, including the orientation, position, size and shape of grains and phases within internal interfaces as well as grain boundary related data.
Similar to AVX's Maxi and Maxi+ product offerings, the new single-layer ceramic capacitor series, designated Ultra Maxi, features X7R characteristics and a dielectric constant of 60,000 - double the previous industry high for Grain Boundary Barrier Layer (GBBL) formulations.
By analyzing the CG-Silicon thin-film semiconductor with a high-resolution electron microscope and an electron beam diffraction image, it was proved that the CG-Silicon semiconductor had an unprecedented level of crystal orientation as well as atomic-level continuity in its silicon grain boundary.
To describe the structure of polycrystalline materials, modern attitude consists in the characterization of different types of boundaries present in the material and their connectivity in the grain boundary network (Rohrer, 2011).
US patent (13/155,508) titled "Enhancing Critical Current Density of Cuprate Superconductors" discloses a method for enhancing 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.
Fast/instant release data are measured at different locations of the fuel and are compared with estimated grain boundary and total inventories.
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.
Neodymium-based magnets generally have two phases, namely, the main phase (with magnetism) and the grain boundary phase.
Low-stress creep is apparently dominated by grain boundary sliding, as evidenced by the low stress exponent (n [approximately equal to] 4), low activation energy (Q [approximately equal to] 42 kJ/mole), and significant grain rotation during creep.