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What is it? Hafnium Diboride Powder ? Hafnium boreide is a gray-colored crystal with metallic luster. It has high conductivity, and stable chemical property. 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.
These are 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 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 fire resistance, it can be used in composite materials at ultra high temperatures with silicon carbide (SiC). This material is more resistant to oxidation when it has been combined with silicon carbide.
2. The temperature and pressure determine the resistance to oxidation of hafnium dioxide. 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°C 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 product 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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