MOLYBDENUM METAL POWDER AND PRODUCTION THEREOF

摘要

Molybdenum metal powder 10, and method 80 for production thereof. Molybdenum metal powder 10 has surface-area-to-mass-ratios in a range of between about 1.0 meters ²/gram (m²/g) and about 3.0 m²/g, as determined by BET analysis, in combination with a particle size wherein at least 30% of the particles have a particle size larger than a size +100 standard Tyler mesh sieve. In addition, molybdenum metal powder 10 may be further distinguished by flowability in a range of between about 29 seconds/50grams (s/50g) and about 64 s/50g, as determined by a Hall Flowmeter. The method 80 of producing molybdenum powder 10 may comprise providing 82 a supply of ammonium molybdate 24, heating 84 the ammonium molybdate 24 at an initial temperature in the presence of a reducing gas 30 to produce an intermediate product 74, and heating 86 the intermediate product 74 at a final temperature in the presence of the reducing gas 30, producing 88 molybdenum metal powder 10.