Hafnium Diboride HfB2 Powder Applications

Overview of Hafnium Diboride HfB2 Powder

Hafnium boride is a gray crystal with metallic luster. It has high conductivity and stable chemical properties. Almost non-reactive with all chemical reagents (except hydrofluoric acid) at room temperature. It is prepared by mixing and heating hafnium dioxide, boron oxide or boron carbide and carbon powder, or by reducing hafnium tetrachloride and boron trichloride under hydrogen at 2000°C or by direct reaction of hafnium and boron. It is used as a superalloy.

Hafnium diboride has high melting point, high hardness, good electrical and thermal conductivity and good neutron absorption properties. It has important applications in the fields of ultra-high temperature materials, superhard materials, electrode materials and neutron absorption materials.

Main features of hafnium diboride powder

Hafnium diboride has high melting point, high hardness, good electrical and thermal conductivity and good neutron absorption properties. It has important applications in the fields of ultra-high temperature materials, superhard materials, electrode materials and neutron absorption materials.

Hafnium Diboride Properties

Other names Hafnium boride, HfB2 powder

CAS number 12007-23-7

Compound formula HfB2

Molecular weight 200.112

Appearance Black Powder

Melting point 3250℃

Boiling point Not applicable

Density 10.5 g/cm3

Solubility in Water Not applicable

Exact mass 201.965161

Hafnium Diboride HfB2 Powder Applications

Hafnium diboride in wear-resistant coatings. It is also considered for use in ultra-high temperature composites with silicon carbide (SiC) due to its excellent refractoriness. The addition of silicon carbide improves its oxidation resistance.

The oxidation resistance of hafnium diboride is temperature and pressure dependent. At a temperature of 1500 °C and a pressure of 1 atm, a protective scale of hafnium oxide is formed. When the temperature rises above 1600 °C and the pressure drops below 1 atmosphere, the oxidation resistance of HfB2 will be significantly reduced. Under these conditions, the boiling point of B2O3, one of the oxidation products of HfB2, will be exceeded and a protective oxide layer will form.

Due to its strength and thermal properties, the material could be used in ultra-high-speed reentry vehicles, such as ICBMs or heat shields on aerodynamic fronts. Unlike polymers and composites, HfB2 can form aerodynamic shapes and does not ablate during reentry.

Hafnium diboride has also been investigated as a possible new material for control rods in nuclear reactors.

Hafnium diboride has also been investigated as a diffusion barrier for microchips. If synthesized correctly, the barrier thickness can be less than 7 nm.

Hafnium Diboride HfB2 Powder Price

The price of hafnium diboride HfB2 powder varies randomly with factors such as production cost, transportation cost, international situation, exchange rate, and changes in supply and demand of hafnium diboride HfB2 powder market. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Hafnium Diboride HfB2 Powder Materials, please feel free to get in touch for the latest Hafnium Diboride HfB2 Powder prices.

Hafnium diboride HfB2 powder suppliers

As a global supplier of diboride HfB2 powders, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

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