Properties of AIN-TiN composite ceramics

Results are presented of a study dealing with an AlN-TiN composite material for high temperature applications. Hardness, microhardness, compressive st rength, electrical resistance, and thermal conductivity of the material wer e measured at room temperatures and flexural strength was measured at tempe ratures from 20 to 1800 degreesC. The composite material containing 40 wt-% AlN and 60 wt-% TiN and hot pressed at 1850-1950 degreesC exhibits an incr ease in strength of 20% with a rise in temperature, which permits it to be used at elevated temperatures. BCT/439.