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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.
A comprehensive book on grain boundaries, their structure, properties and engineering applications. It covers the theoretical basis, the defects, the interactions and the networks of grain boundaries in crystalline materials.
A comprehensive overview of grain boundaries in crystalline materials, covering their crystallographic, structural and thermodynamic aspects. Learn how to characterise grain boundaries by five parameters, classify them by symmetry and orientation, and understand their effects on properties and processes.
A grain boundary is, formally at least, two surfaces back-to-back. The two crystallites joined by the boundary are rotated with respect to each other. If the axis of rotation is parallel to the interface, the boundary is called a tilt; if perpendicular it is called at twist. Most boundaries are combinations of these extremes.
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.
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.
4 de nov. de 2018 · Grain boundary (GBs) can be defined as an internal interface between two crystals with. different orientations. In terms of atomic structure, grain boundary represents a transition. region,...
