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  • What Are Refractory Metals?
    properties: Besides. filament, because of its high melting. their use in many electrical and. point and good non- sag characteristic,. electronic applications, refractory. will withstand thousands of on-off. metals are often used as heat. cycles and still remain intact. sinks...this semiconductor
  • Thermographic Monitoring of Refractory Lined Petroleum Refinery Equipment
    . Refractory is a temperature-resistant lining similar to concrete that is used to line refinery equipment that operates at very high temperatures. The refractory lining protects the outer shell of the piping and vessels from the hot gas and catalyst circulating inside the process plant. Failure of refractory
  • Refractory Hard Metals
    Refractory hard metals (RHMs) are a ceramiclike class of materials made from metal-carbide particles bonded together by a metal matrix. Often classified as ceramics and sometimes called cemented or sintered carbides, these metals were developed for extreme hardness and wear resistance. The RHMs
  • An Introduction to ASTM B898, The Reactive and Refractory Metal Clad Specification (.pdf)
    In 1999 the ASTM B10 committee Task Force on Clad Metal completed development and approvals of a specification covering Reactive and Refractory Metal Clad Plate. The task force effort included participation by representatives from equipment fabricators, chemical companies, metal manufacturers
  • How the Application of Refractory Materials Have Offered the Petrochemical Industry Greater Efficiencies (.pdf)
    Several case histories in sulfuric acid are used to illustrate the potential for zirconium to increase manufacturing efficiency by reducing operating and maintenance costs in the petrochemical industry. These examples show zirconium and the other refractory materials are well positioned to meet
  • Microstructure and Magnetic Properties of Sintered NdFeB Magnets with Improved Impact Toughness
    point el-. ements such as Al and Ga forms intergranular phases, but. the addition of refractory metals such as Nb, Ti, Mo, and V. would form precipitates within the grains. The EDS spec-. trum shows that these precipitates are rich in neodymium,. FIG. 6. SEM micrograph showing the fractured surface
  • Advanced Reactor System for the Fine Control of Properties of Molybdenum Powder
    from both product quality con-. trol and cost saving. Introduction. In the refractory metal industry, fine-grain molybdenum (Mo) powder is usual y produced by a two-stage reduction process. Both Ammonium Di-Molybdate (ADM) and Molybdenum Trioxide (MoO3) can be the starting materials with hydrogen (H2
  • Tungsten
    Tungsten is a heavy metal that can be classified as a refractory metal, i.e., one with a high melting point. Refractory metals can be useful for their strength at high temperatures and their resistance to corrosion. Tungsten is difficult to melt, so commercial non-alloyed tungsten is produced

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