Production of Ceramic Plates Based on Al2O3–TiB2 by Free SHS Compression

Abstract

Ceramic plates with dimensions of 90 × 40 × 7 mm and a density of 3.41 g/cm3 were obtained by the method of free SHS-compression. The resulting plates consist of three phases: aluminum oxide, titanium diboride, and mullite. The plates have a composite structure: a matrix based on Al2O3 with titanium diboride particles distributed in it. Also, in the structure of the obtained plates, whiskers of titanium monoboride with a thickness of about 100 nm were observed. The results of high-temperature tests of plates in the range of 900 – 1200°C for 10 hr are presented, the dependences of the true rate of weight gain and specific weight gain of samples during the tests are obtained.