Hafnium diboride applications and characteristics


Apr 24, 2023 , ,

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What is hafnium Diboride Powder? Hafnium Diboride is an ultra-high temperature ceramic that is made from hafnium, boron. It is a unique ceramic with high heat conductivity and conduction. It is a metallic gray color. Hafnium dioxide has a hexagonal structure and a density 10.5 g/cc. It can melt at approximately 3,250 degrees Celsius. Hafnium diboride’s resistance to oxidation is affected by temperature and pressure. At 1500°C and 1atm, the protective oxide layer forms. HfB2’s antioxidant activity decreases when temperatures rise above 1600degC and pressure drops below 1atm. In these conditions, B2O3 (one oxidation product of HfB2) boils at a higher temperature than B2O3, creating a protective layer of oxide.
Uses of hafnium diboride powder
Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry aircrafts, such as an INTERCONTINENTAL missile heat shield or pneumatic front. HfB2 has an aerodynamic form and doesn’t ablate upon reentry, unlike polymers and composites.
Hafnium Diboride is also being considered as a possibility for new materials in nuclear reactor control rods.
It is also being investigated as a diffusion shield for microchips. The barrier can be less that 7 nanometers thick if synthesized properly.
Hafnium diboride powder characteristics :
Hafnium Diboride is an ultra-high temperature ceramic that’s made from hafnium, boron. It melts at approximately 3,250 degrees Celsius. It is an unusual ceramic with high heat conduction, electrical conductivity, and the same properties that titanium and zirconium triboride. It’s a gray metallic material. Hafnium Diboride has hexagonal crystal structures with a molar density of 10.5 grams/cc and a mass of 200.11 grams/mol.
How is hafnium Diboride powder manufactured?
These are the steps that enable you to realize combustion synthesis for high purity hafnium Diboride Powder.
1. Mix base ingredients and thinner. Mix base ingredients with thinner.
2. Mix dry with wet
3. The graphite powder should be evenly mixed. The reaction is then carried out in a closed pressure vessel under 0-5mpa pressure, or in a vacuum with a protective atmosphere. By self-propagating burning, raw materials can be transformed into products.
4. Cool the product. It is a mixture between hafnium dioxide and magnesium oxide. To obtain hafnium Diboride powder, magnesium oxide must be removed by picking.
Hafnium diboride powder supplier
(aka. Technology Co. Ltd. (aka. Our company has developed a number of materials. Our company’s Hafnium Diboride is high in purity, fine particle size and has low impurity. Send us an e-mail or click on this link Needed products Send an inquiry