作者: J.D. Powers , A.M. Glaeser
关键词: Metallurgy 、 Materials science 、 Grain boundary strengthening 、 Solvent drag 、 Ceramic 、 Microstructure 、 Grain boundary 、 Grain boundary diffusion coefficient 、 Grain growth 、 Anisotropy
摘要: During ceramic fabrication, densification processes compete with coarsening to determine the path of microstructural evolution. Grain growth is a key process. This paper examines grain boundary migration in ceramics, and discusses effects solutes, pores, liquid phases on rates. An effort made highlight work past decade that has contributed advanced our understanding solute drag effects, pore-boundary interactions, role Anisotropy mobility, its development anisotropic (anisometric) microstructures discussed as it central issue recent efforts produce materials new combinations properties functionality.