What Is Molybdenum Carbide (MoC)?

What Is Molybdenum Carbide (MoC)?

Molybdenum Carbide (MoC) is generally immediately available in most volumes. Ultra high purity, high purity, submicron and nanopowderforms may be considered. Chinatungsten produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, researchand safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

 Molybdenum Carbide Balls

Carbides are compounds in which the anion is one or more carbon atoms. Most metals form carbide compounds, though not all. Indium and Gallium, for example, do not. Like diamond, a pure carbon compound, carbide compounds tend to be extremely hard, refractory and resistant to wear, corrosion and heat, making them excellent candidates for coatings for drills and other tools. They often have other valuable properties in combination with toughness, such as electrical conductivity, low thermal expansion and abrasiveness. 

Molybdenum Carbide-Mo2C

Molybdenum carbide (Mo₂C) can occur in many crystalline forms, the most common of which is α-Mo₂C and β-Mo₂C.

Mo2C Powder

 It is the latter phase which is stable at low temperatures and occurs in steels. β-Mo₂C has a close-packed hexagonal crystal structure with the carbon atoms located in one half of the available octahedral interstices. The lattice parameters assumed for the diagrams below are a=0.3007 nm and c=0.4729 nm.

Projection of four unit cells. The numbers indicate the fractional coordinates along the z-axis. The black atoms are carbon and the blue molybdenum.	Two molybdenum and one carbon atom per unit cell.
	As the projection along the z-axis, but with most of the atoms removed to show carbon in an octahedral interstice.
Carbon in an octahedral interstice.