Effect of Interface Structure on Microstructural Evolution in Polycrystals
نویسندگان
چکیده
منابع مشابه
Effect of Interface Structure on the Microstructural Evolution of Ceramics
The interface atomic structure was proposed to have a critical effect on the microstructure evolution during sintering of ceramic materials. In liquid-phase sintering, spherical grains show the normal grain growth behavior without exception, while angular grains often grow abnormally. The coarsening process of spherical grains with a disordered or rough interface atomic structure is diffusion-c...
متن کاملComment on ‘‘Effect of Interface Structure on the Microstructural Evolution of Ceramics’’
THE following comments are directed to the sections (2) ‘‘revisit to the grain growth problems in alumina’’ and (3) grain growth without a liquid phase in the article of concern. The purpose of this comment is to challenge the authors’ assertions and refute the following arguments, namely, first that ‘‘MgO can be considered a very effective grain growth promoter in the sintering of alumina,’’ s...
متن کاملInterface Anisotropy and its Effect on Microstructural Evolution During Coarsening
The driving force for coarsening is provided by the excess interfacial free energy. In a system with isotropic interface energies, classical coarsening theories can predict the evolution of the sizes of spherical crystals. However, if the interfaces are anisotropic, crystal growth and shrinkage may be limited by the surface attachment/detachment rate, the motion of ledges, or the nucleation of ...
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ژورنال
عنوان ژورنال: Transactions of the Materials Research Society of Japan
سال: 2010
ISSN: 1382-3469,2188-1650
DOI: 10.14723/tmrsj.35.455