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Applications of Hafnium Diboride HfB2 Powder

wallpapers News 2021-12-29
Hafnium diboride is used in wear-resistant coatings. Its use has also been looked at for use in ultra-high-temperature composites in conjunction with silicon carbide (SiC), due to its excellent refractoriness. The addition of silicon carbide improves its oxidations resistance.
The oxidation resistance of hafnium diboride is dependent on the temperature and pressure. At a temperature of 1500 °C and 1 atm of pressure, a protective oxide scale of hafnia forms. When temperatures rise above 1600 °C and pressures drop below 1 atm, the oxidation resistance of HfB2 is dramatically reduced. Under these conditions, the boiling temperature of B2O3 (one of the oxidation products of HfB2) is exceeded and the protective oxide layer.
The material has potential for use in hypervelocity reentry vehicles such as ICBM heat shields or aerodynamic leading-edges, due to its strength and thermal properties. Unlike polymer and composite material, HfB2 can be formed into aerodynamic shapes that will not ablate during reentry.
Hafnium diboride is also investigated as a possible new material for nuclear reactor control rods.
Hafnium diboride is also being investigated as a microchip diffusion barrier. If synthesized correctly, the barrier can be less than 7 nm thick.
Storage Condition of Hafnium diboride HfB2 powder:
Damp reunion will affect HfB2 powder dispersion performance and using effects, therefore, hafnium diboride HfB2 powder should be sealed in vacuum packing and stored in cool and dry room, the hafnium diboride HfB2 powder can not be exposure to air. In addition, the HfB2 powder should be avoided under stress.
Packing & Shipping of Hafnium diboride HfB2 powder:
We have many different kinds of packing which depends on the hafnium diboride HfB2 powder quantity.
Hafnium diboride HfB2 powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Hafnium diboride HfB2 powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

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