학술논문
Constant of motion for ideal grain growth in three dimensions
Document Type
article
Source
Physical Review B. 104(14)
Subject
Language
Abstract
Most metallic and ceramic materials are comprised of space-filling collections of crystalline grains separated by grain boundaries. While this grain structure has been studied for more than a century, there are few rigorous results regarding its global properties available in the literature. We present a rigorous result for three-dimensional grain structures that relates the integral of the Gaussian curvature over the grain boundaries to the numbers of grains and quadruple junctions. The result is numerically verified for a grain structure consisting of periodic truncated octahedra.