Research in the Field of Composite Materials Based on HCBS and Refractory Materials Based on the System Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-SiC. Part 2.
The effect of heat treatment duration of the properties of specimens prepared on the basis of composite composition HCBS in the Al2O3-SiO2-SiC system is studied. With a content of 10 and 30% SiC in specimens its fineness varies within the limits 3 - 200 μm. Amethod is proposed for evaluating the degree of SiC oxidation within composite material. Depending on specimen composition this index is within the limit 50 - 100%. Maximum values of σben and σco for SiC-containing specimens reach 80 and 390 MPa respectively.