SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS OF ULTRADISPERSE MOLYBDENUM-DISULFIDE

The synthesis of molybdenum disulfide in a combustion wave, from mixtu res of sulfur with ultradisperse molybdenum powder obtained by electri cal explosion of wires, is investigated. Experimental data are given o n the combustion rate and temperature and the degree of conversion to the final product as a function of the pressure and component ratio. I t is shown that the process corresponds to a parabolic law with an act ivation. energy of 80 J/mole and be described by an elementary model o f combustion of the second kind. Optimal conditions of synthesis with a yield of up to 99% are determined.