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What is it?

Hafnium Diboride Powder

Hafnium boreide is a gray-colored crystal with metallic luster. It is very stable in chemical properties and conductivity. It is indistinguishable from all other chemical reagents at room temperature, with the exception of hydrofluoric acids. It can be prepared by heating hafnium oxide or boron carbonide with carbon powder or by reducing hafnium titanate and boron trichloride under hydrogen at 2000. Or by directly reacting hafnium or boron. It is used to make superalloys.

The key features of

Hafnium Diboride Powder

Hafnium Diboride has a high melting point, high hardness and excellent electrical and thermal conductivity. It also exhibits good neutron absorption properties. It can be used to make electrode materials, super-hard materials and neutron absorption substances, as well as ultra-high-temperature materials.

Hafnium Diboride Properties

Other Titles
hafnium boride, HfB2 powder


Combination Formula

Molecular Weight

Black Powder

Melting Point
3250 degC

Boiling Point

10.5 g/cm3

Solubility of H2O

Exact Mass

Hafnium Diboride HfB2 Powder CAS 12007-23-7

Applications of Hafnium Diboride Pulver

1. Hafnium Diboride in wear-resistant coats Because of its exceptional fire resistance, it can also be used in ultra high temperature composite materials (SiC) with silicon carbide. This material is more resistant to oxidation when it has been combined with silicon carbide.

2. Temperature and pressure determine the resistance to oxidation of hafnium-diboride. At 1500 degrees Celsius and 1 atmosphere pressure, a protective oxide of hafniumoxide is formed. HfB2’s oxidation resistance will decrease significantly if it is heated above 1600 degrees Celsius and the pressure drops below one atm. These conditions will cause the boiling temperature for B2O3 (one oxidation product of HfB2) to exceed 1400°C. A protective oxide layer will then form.

3. Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry vehicle, such as heat shields, for intercontinental ballistic missiles, or aerodynamic fronts. HfB2 forms aerodynamic shapes unlike composite and polymers, and does not ablate during reentry.

4. Hafnium Diboride was also investigated as a possibility for new materials in nuclear reactor control rods.

5. Hafnium-diboride is being investigated as a diffusion barrier for microchips. If the synthesis is correct the barrier thickness could be less than 7 nanometers.

The supplier

Hafnium Diboride Powder

Tech Co., Ltd. () is a professional

boride powder

Over 12 years’ experience in chemical products development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.

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