PROCESS FOR THE PREPARATION OF SUBMICRON-SIZED BORON CARBIDE POWDERS.

摘要

Ultrafine, high purity B4C is produced by BCl3, CH4 or C2H4, and H2, using a CO2 laser (10), where a stoichiometric excess of H2 and about half the stoichiometric amount of CH4 or C2H4 is employed.