Investigation of the Structure and Properties of Materials in the SiC -- TiB2 System

The structure and properties of sintered and hot-pressed materials of the SiC -- TiB^sub 2^ system were investigated. The optimal conditions for obtaining dense ceramics with minimum grain size of the phase components was determined. It was established that composites containing from 25 to 50 vol.@percnt; TiB^sub 2^ have a bend strength equal to 450 MPa at 20°C; this increases to 500 MPa at 1600°C for ceramics with a pseudoeutectic structure. The material is highly heat resistant in the temperature range 900-1200°C.[PUBLICATION ABSTRACT]