Mechanical Properties of Polycrystalline β‐Sic

Abstract

The mechanical properties of chemically vapor‐deposited β‐Sic were measured in bending between room temperature and 1400°C. Material with grain diameters from less than 1 to 15 μm was tested. No grain‐size dependence of the bend strength of dense (3) β‐Sic underwent a transition from predominantly transgranular at room temperature to predominantly intergranular at high temperature.