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In materials science, a grain boundary is the interface between two grains, or crystallites, in a polycrystalline material. Grain boundaries are two-dimensional defects in the crystal structure, and tend to decrease the electrical and thermal conductivity of the material.
Grain boundary in a solid crystalline material is a region separating two crystals (grains) of the same phase. These two grains differ in mutual orientations and the
This book presents the theoretical basis of the study of grain boundaries and aims to open up new lines of research in this area. The treatment is light on mathematical approaches while emphasizing practical examples; the issues they raise are discussed with reference to theories.
Grain boundaries are planar defects which accommodate the misorientation between neighboring grains in a polycrystalline material (cf. [1–3]). From a geometric perspective, grain boundaries have five macroscopic and three microscopic degrees of freedom [1].
23 de jul. de 2020 · Grain boundaries (GBs) are a kind of lattice imperfection widely existing in two-dimensional materials, playing a critical role in materials’ properties and device performance. Related key issues in this area have drawn much attention and are still under intense investigation.
1 de ene. de 2010 · This chapter briefly introduces geometric and thermodynamic description and atomic structure of the grain boundaries. The grain boundaries are classified from the points of view of their misorientation angle, relationship between the rotation axis and normal to the...
25 de oct. de 2021 · Once in a Schwarz-like configuration, the grain-boundary network has ‘nowhere to go’: its surface area and mean curvature are minimal, and so it is topologically stable.
