What is Hafnium Diboride Powder?


What is it?



Hafnium Diboride Powder



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Hafnium boreide is a gray-colored crystal with metallic luster. It has excellent conductivity and stable chemical characteristics. It is indistinguishable from all other chemical reagents at room temperature, with the exception of hydrofluoric acids. You prepare it by heating hafnium oxide or boron carbonide with carbon powder. Or, you can reduce hafnium trichloride and hafnium trichloride under 2000 hydrogen. 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, neutron absorption materials, ultra-high-temperature materials, and super-hard materials.


Hafnium Diboride Properties

Other Titles
hafnium boride, HfB2 powder

No.
12007-23-7

Combination Formula
HfB2

Molecular Weight
200.112

Appearance
Black Powder

Melting Point
3250 degC

Boiling Point
N/A

Density
10.5 g/cm3

Solubility of H2O
N/A

Exact Mass
201.965161


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. A protective oxide scale of hafniumoxide is formed when the temperature is 1500 degrees Celsius and the pressure is 1 atmosphere. HfB2’s oxidation resistance will decrease significantly if it is heated above 1600 degC or the pressure drops below one atm. These conditions will cause the boiling temperature for B2O3 (another 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 has been 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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