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Progress in Plasma Processing of Materials, 1997

ISBN Print: 1-56700-093-2

Thermodynamic Consideration of B-O-C-H System for Boron Carbide (B4C) Powder Synthesis in Thermal Plasma

Abstract

The results of equilibrium composition and total enthalpy computation in the temperature range of 1000 K to 6000 K and at pressure of 1 bar, for B-O-C-H system, are presented in the paper. These data enable temperature and energy parameters determination and optimization of the process for ultrafine boron carbide powder (B4C) production, by boron oxide (B203) or boric acid (H3BO3) decomposition in an methane or propane-butane thermal plasma, followed by quenching with cold methane or propane-butane gas.
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