Rigidity Modulus of Some Pure Oxide Bodies 8th Communication to Ceramography

Abstract

Rigidity modulus of several sintered pure oxides was measured using specially prepared test pieces. A particular form of samples permitted an exact measurement of their dimensions and insured their proper elastic torsion deformation under a given load. Sintered alumina was tested up to 1550°C. Monocrystalline corundum, sintered stabilized zirconia, sintered pure beryllia, thoria, spinel, and zircon were tested at room temperature. Close agreement was noted between rigidity modulus values and Young's modulus values.