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 1500degC and 1atm, it forms an oxide protective scale. HfB2’s antioxidant activity decreases when temperatures rise above 1600degC and pressure drops below 1 atm. In these conditions, B2O3 (one the oxidation products from 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. If the barrier is correctly synthesized, it can be less than seven nanometers thick.
Hafnium diboride powder characteristics
Hafnium Diboride is an ultra-high-temperature ceramic that’s made of hafnium, boron. It melts at approximately 3,250 degrees Celsius. It is a unique ceramic with high heat conduction, electrical conductivity, and similar properties to titanium and zirconium diboride. It is a gray, metallic substance. 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 closed pressure vessel is then cooled with circulating waters. The reaction is performed under 0-5mpa pressure, or in a vacuum protected by an 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 impurities. Send us an e-mail or click on this link
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