The distribution of grain diameters in polycrystalline magnesium oxide

Grain diameters in porous and nonporous magnesium oxide are shown to be distributed in the same way as in a metal. The spread of the distribution appears to be influenced by the purity of the ceramic, but not by the average grain size

The planar distribution of grain size in a polycrystalline ceramic

The planar distribution of grain size in polycrystalline magnesium oxide is accurately represented, over a wide range of average grain diameter, by a simple function of the square root of the grain diameter. An analysis of the experimental data shows that a similar function of the logarithm of the grain diameter does not fit them so well