White Molybdenum Alloys

Molybdenum Alloys are usually produced by powder metallurgy techniques in which Mo powder is hydrostratically compacted and sintered at about 2100 °C. Hot working is done in the 870-1260 °C range. Moly forms a volatile oxide when heated in air above about 600°C and therefore high temperature applications are limited to non-oxidizing or vacuum environments.Moly alloys have excellent strength and mechanical stability at high temperatures (up to 1900 °C). Their high ductility and toughness provide a greater tolerance for imperfections and brittle fracture than ceramics.The unique properties of molybdenum alloys are utilised in many applications: High temperature heating elements, radiation shields, extrusions, forging dies, etc; Rotating X-ray anodes used in clinical diagnostics; Glass melting furnace electrodes and components that are resistant to molten glass; Heat sinks with thermal expansivity matching silicon for semiconductor chip mounts; Sputtered layers, only Ångstroms (10-7 mm) thick, for gates and interconnects on integrated circuit chips; Sprayed coatings on automotive piston rings and machine components to reduce friction and improve wear. For specialized applications, Mo is alloyed with many other metals: Mo-tungsten alloys are noted for exceptional resistance to molten zinc; Mo is clad with copper to provide low expansion and high conductivity electronic circuit boards; Mo-25% rhenium alloys are used for rocket engine components and liquid metal heat exchangers which must be ductile at room temperature. We are also offering Molybdenum Rods.