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Hafnium boride

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Catalog Number
ACM12007237-2
Product Name
Hafnium boride
CAS
12007-23-7
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Synonyms
HAFNIUM BORIDE;HAFNIUM DIBORIDE;HAFNIUM BORIDE, 99.5% (METALS BASIS EXCLUDING ZR), ZR ;Hafnium boride, 99% (metals basis);Hafnium boridepowder;HafniuM borid;Hafnium boride powder, -325 mesh, 99% trace metals basis
IUPAC Name
boron; hafnium
Molecular Weight
200.11
Molecular Formula
HfB2
InChI Key
LRTTZMZPZHBOPO-UHFFFAOYSA-N
Melting Point
3250ºC
Purity
96%
Density
10.5
Appearance
Liquid or Solid
Exact Mass
205.99600
H-Bond Acceptor
0
H-Bond Donor
0
Application
Hafnium boride, a gray, hexagonal crystal solid featuring lattice parameters of a=0.3141 nm and c=0.3470 nm, is produced by heating a combination of HfO2, C, and B2O3. Known for its impressive hardness of 2900 kgf/mm² and a resistivity of 8.8 μohm·cm, this material is predominantly utilized as a refractory material and a sputtering target with 99.5% purity to generate films that can be both wear-resistant and semiconducting. Its applications extend to wear-resistant coatings, nuclear reactor control rods, and components such as heat shields or aerodynamic leading edges in hypervelocity re-entry vehicles like ICBMs. Additionally, hafnium boride is valuable in developing high-temperature composites when used alongside silicon carbide (SiC).
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