| Identification | Back Directory | [Name]
HAFNIUM BORIDE | [CAS]
12007-23-7 | [Synonyms]
HafniuM borid
HAFNIUM BORIDE
HAFNIUM DIBORIDE
Hafnium boride HfB2
Hafnium boride powder
Hafnium boride powder (HfB2)
hafnium,λ2-boranylideneboron
Hafnium boride, 99% (metals basis)
hafnium,λsup2sup-boranylideneboron
HAFNIUM BORIDE ISO 9001：2015 REACH
Hafnium boride powder, 5-10 μm, 99.5%
um 99.8%hafnium,λ2 boranylideneboron
Cobalt Nickel (Co-Ni) Alloy Sputtering Targets
Hafnium boride, 99.5% trace metals basis excluding Zr
Hafnium boride powder, -325 mesh, 99% trace metals basis
HAFNIUM BORIDE, 99.5% (METALS BASIS EXCLUDING ZR), ZR <2% | [EINECS(EC#)]
234-500-7 | [Molecular Formula]
B2Hf- | [MDL Number]
MFCD00016125 | [MOL File]
12007-23-7.mol | [Molecular Weight]
200.11 |
| Chemical Properties | Back Directory | [Melting point ]
3250°C | [density ]
10.5 | [form ]
Powder | [color ]
gray hexagonal, hexane crystals, crystalline | [Specific Gravity]
10.5 | [Water Solubility ]
Insoluble in water. | [Crystal Structure]
Hexagonal | [Exposure limits]
ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3 | [InChIKey]
VFOMGQXFCYKNAF-UHFFFAOYSA-N | [EPA Substance Registry System]
Hafnium boride (HfB2) (12007-23-7) |
| Hazard Information | Back Directory | [Chemical Properties]
gray, hexagonal, crystal(s) solid, a=0.3141 nm, c=0.3470nm; can be prepared by heating HfO2+C+B2O3; hardness 2900 kgf/mm2; resistivity 8.8μohm· cm; used as a refractory material and as a sputtering target with 99.5% purity to produce films, which may be wear-resistant and semiconducting [HAW93] [KIR80] [CER91] | [Uses]
Hafnium boride is used in wear resistant coatings. It is also employed as a nuclear reactor control rod. Furthermore, it is used in hypervelocity re-entry vehicles like ICBM heat shields or aerodynamic leading-edges. It is useful in the preparation of high temperature composites in conjunction with silicon carbide (SiC). |
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