Oxidation resistance and diffusion behavior of MoSi2/WSi2/(Nb,X)Si2 compound coating at 1400 °C

Investigation of the Roasting Behavior of Mixtures of Molybdenum Trioxide and Molybdenum Concentrates

“…Molybdenum is an important strategic metal that has strong thermal conductivity, high strength at high temperatures, and a low thermal expansion coefficient . Due to its excellent properties, molybdenum is an irreplaceable metal in industrial development and is widely used in many fields, for instance, as catalysts in the chemical industry, , as additives in the iron and steel industry, , as antioxidant coatings in high-temperature furnace bodies, , and in aerospace applications. , In the traditional molybdenum industry, molybdenum metal is mainly obtained by hydrogen reduction of MoO 3 . High-purity MoO 3 is finally obtained through two intermediate products of molybdenum trioxide and ammonium molybdate. − This process is long, consumes large amounts of energy, and has many other disadvantages; the rare metal rhenium sublimates very easily as rhenium oxide into the flue gas and is difficult to recover; the process has low economic efficiency and is relatively expensive; sulfur dioxide is present in the gas at low concentrations and is difficult to recycle.…”

“…Molybdenum is an important strategic metal that has strong thermal conductivity, high strength at high temperatures, and a low thermal expansion coefficient. 1 Due to its excellent properties, molybdenum is an irreplaceable metal in industrial development and is widely used in many fields, for instance, as catalysts in the chemical industry, 2,3 as additives in the iron and steel industry, 4,5 as antioxidant coatings in high-temperature furnace bodies, 6,7 and in aerospace applications. 8,9 In the traditional molybdenum industry, molybdenum metal is mainly obtained by hydrogen reduction of MoO 3 .…”