Published July 1992
by Trans Tech Publications .
Written in English
|The Physical Object|
|Number of Pages||936|
Get this from a library! Grain Growth in Polycrystalline Materials II: Proceedings of the 2nd International Conference on Grain Growth in Polycrystalline Materials (ICGG-II), held in Kitakyushu, Japan, -- Grain Growth is one of the most fundamental microstructural changes, and occurs in all types of polycrystalline material. It is of major scientific interest, and of great importance in. You need not be an expert in material science or engineering to benefit from Grain Growth and Control of Microstructure and Texture in Polycrystalline Materials. This unique book presents up-to-date information on the grain growth process in an easy-to-understand format. It goes beyond the recent advances in this area achieved with stimulation. When a polycrystalline material is heated, grain growth occurs. As mentioned above, grain growth in a polycrystal requires both the growth and shrinkage of grains for the average grain size to increase. The driving force is the pressure difference across curved grain boundaries. For the case of normal grain growth the kinetics are well understood. Literature is not available on the grain growth in polycrystalline ice. The present paper deals with such grain growth in pure ice and ice doped with sodium chloride. The technique consists in measuring grain size distributions as a function of time and deriving the numberaverage equivalent “diameter”, considering the grains as spheres.
Studies of three-dimensional polycrystalline grain structures focusing on grain growth using 3DXRD yielded very interesting results in recent years. Schmidt et al. () investigated grain growth in an Al–% Mn sample measuring the three-dimensional grain morphology as well as the crystallographic orientation of grains prior to annealing, from which after significant grain growth had. Taek-Jung Shin, Jeang-Ook Oh, Kyu Hwan Oh, Dong Nyung Lee, The mechanism of abnormal grain growth in polycrystalline diamond during high pressure-high temperature sintering, Diamond and Related Materials, /d, 13, 3, (), (). Grain growth can play a dominant role in defining the grain size and texture of as- deposited films of high mobility materials, and of annealed films of any polycrystalline material. Grain growth in films is almost always abnormal, in that growth of sub- populations of grains with specific crystallographic orientations is favored either by. The book will offer great help to material-oriented physicists, researchers, and () and Grain Growth and Control of Microstructure and Texture in Polycrystalline Materials in English (). _frame_FM Page 7 Saturday, August 2, PM.
In materials science, grain growth is the increase in size of grains (crystallites) in a material at high occurs when recovery and recrystallisation are complete and further reduction in the internal energy can only be achieved by reducing the total area of grain boundary. The term is commonly used in metallurgy but is also used in reference to ceramics and minerals. Grains, also known as crystallites, are small or even microscopic crystals which form, for example, during the cooling of many materials (crystallization).A very important feature of a metal is the average size of the grain. The size of the grain determines the properties of the metal. For example, smaller grain size increases tensile strength and tends to increase ductility. Superplasticity and grain boundaries in ultrafine-grained materials discusses a number of problems associated with grain boundaries in metallic polycrystalline materials. The role of grain boundaries in processes such as grain boundary diffusion, relaxation and grain growth is investigated. Recovery, Recrystallization, Grain Growth • Plastic deformation introduces massive changes into the crystal lattice, including increased dislocation density (single and polycrystalline materials) and changed grain size distributions (polycrystalline materials). • This results in stored strain energy in the system (dislocation.