HfB2 hafnium borideNanoparticles/Nanopowder

Product Properties

Size	Type	Particle size（um）	Purity（%）	Melting Point（℃）	Bulk density（g/cm3）	Boron content %	Color
um	JB-HfB2-001	1-5um	>99.9	3250	10.5	≥10.2	gray
sub um	JB-HfB2-002	10-60um	>99.9	3250	11.9	≥ 12.5	gray
Custom	Acccording to customers requirment. (30-800nm etc)

Ultra-High Melting Point: HfB2 has one of the highest melting points among the known materials, approximately 3250°C (5882°F). This allows it to maintain structural integrity and functionality in environments that would degrade most other materials.
Resistance to Oxidation: At high temperatures, HfB2 forms a protective oxide layer that helps to further resist corrosion and oxidation, enhancing its longevity in oxidative environments.
The combination of high thermal conductivity and low thermal expansion coefficient in HfB2 nanopowder contributes to its excellent resistance to thermal shock. This means it can withstand rapid temperature changes without cracking or failing, which is critical for applications involving sudden temperature fluctuations.
High Hardness and Wear Resistance: Hafnium boride is extremely hard, making it resistant to wear and abrasion. This property is beneficial for applications requiring materials that can endure mechanical stress and harsh conditions.
Good Electrical Conductivity: While it is primarily noted for its thermal properties, HfB2 also exhibits good electrical conductivity, which can be advantageous in certain electrothermal applications or in components requiring electrical conduction at high temperatures.

Thermal Protection Systems: HfB2 is used in the thermal protection systems of spacecraft and hypersonic vehicles. Its ability to withstand extremely high temperatures and protect against thermal shock is crucial for components exposed to the intense heat generated during re-entry into Earth’s atmosphere or traveling at hypersonic speeds.
Rocket Nozzles and Leading Edges: The high melting point and thermal shock resistance of HfB2 make it suitable for use in rocket nozzles and the leading edges of aerospace vehicles, where materials are subjected to extreme thermal and mechanical stress.
HfB2 nanopowder is a key component in ultra-high temperature ceramics, materials known for maintaining strength and stability at temperatures above 2000°C. UHTCs are used in applications ranging from aerospace and defense to nuclear reactors and power generation.
The hardness and wear resistance of HfB2 contribute to its use in cutting tools and abrasive materials. Tools coated with or made from HfB2 nanopowder can exhibit enhanced performance, including increased lifespan and capability to cut or process hard materials.