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HfC Powder, 99.5%, 50um

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HfC Powder, 99.5%, 50um

HfC Powder, 99.5%, 50um

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Specification：
 
Product Name: Hafnium Carbide Powder
CAS Number: 12069-85-1
 
Features:
 
TiB2, ZrB2, HfB2, VB2, NbB, NbB2, TaB, TaB2, CrB2, Mo2B5, W2B5, Fe2B, FeB, CoB, Co2B, NiB, Ni2B, Ni2B, LaB6, UB4, UB2.
Hafnium carbide (HfC) is a chemical compound of hafnium and carbon. With a melting point of about 3900 °C it is one of the most refractory binary compounds known.[2] However, it has a low oxidation resistance, with the oxidation starting at temperatures as low as 430 °C.
 
Properties:
 
Appearance: Black Odorless Powder
Molecular Formula: HfC
Molar mass: 190.50 g/mol
Molecular Weight: 103.2347
Melting Point: 3,900 °C (7,050 °F; 4,170 K)
Density: 12.2 g/cm3
 
Applications:
 
Hafnium carbide powder is obtained by the reduction of hafnium(IV) oxide with carbon at 1800 to 2000 °C. A long processing time is required to remove all oxygen. Alternatively, high-purity HfC coatings can be obtained by chemical vapor deposition from a gas mixture of methane, hydrogen, and vaporized hafnium(IV) chloride. Because of the technical complexity and high cost of the synthesis, HfC has a very limited use, despite its favorable properties such as high hardness (>9 Mohs[5]) and melting point.

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