Abstract

The oxidation and thermal-oxidative stability of titanium diboride are studied during its storage and heating in the air. It was established that during the first 24 hours titanium diboride actively adsorbs oxygen and moisture: the oxidation of TiB2 (1) reaches 11.06·10−7, TiB2 (2) –8.15 · 10−7, TiB2 (3) – 31.5·10−7 kg O2/m2. Analytical dependencies were obtained for the calculation of oxidation. When heated in the air, titanium diboride nanocrystals are oxidized in the temperature range (623 – 673) ± 15 K, microcrystals at a temperature of 688 ± 5 K and higher.

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