FIELD: metallurgy.
SUBSTANCE: invention relates to refractory compositions metallurgy and may be used as ceramics and protective covering in high-temperature facilities. The original mixture of titanium and boron chlorides containing 3-5% of boron chloride excess from stoichiometry is recovered by sodium in argon environment. The original mixture temperature is maintained within the interval from 0 to 10°C. The resulting reaction mass is grinded and leached in hydrochloric acid solution.
EFFECT: synthesised titanium diboride with grain size being 30-50 nm and stoichiometric composition is characterised with improved process parametres.
1 tbl, 1 ex
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Authors
Dates
2009-05-10—Published
2007-07-11—Filed