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Average Grain Size in Polycrystalline Ceramics

Journal of the American Ceramic Society · 1969 · Vol. 52(8) · pp. 443–446

Mel I. Mendelson✉(Fairchild Semiconductor (United States))

Abstract

A model is proposed which realistically characterizes the grain structure of polycrystalline ceramics. The average grain size of a log‐normal distribution of grain sizes with tetrakaidecahedral (truncated octahedral) shape is related to the average intercept size by a proportionality constant. This result can be used to determine the average grain size of a sintered powder compact composed of nontextured grains which shows no discontinuous grain growth.

Powder Metallurgy Techniques and Materials Granular flow and fluidized beds Material Dynamics and PropertiesGrain sizeCrystalliteMaterials scienceCeramicParticle-size distributionGrain growthMineralogyGrain boundary strengtheningCrystallographyMetallurgy

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