Hafnium Boride powder (Micron powder and nanopowder)
Princeton Powder is a leading supplier of high-purity, high surface area Hafnium Diboride (HfB₂) powder, a premium ultra-high-temperature ceramic (UHTC) material. We offer submicron and nano HfB₂ powder with a narrow particle size distribution, suitable for advanced sintering, coating, and composite applications. Our spherical or near-spherical Hafnium Diboride plasma-sprayed powder features low oxygen content, excellent flowability, and is engineered for use in aerospace components, thermal protection systems, and electrically conductive ceramics. HfB₂ is valued for its extreme thermal stability, high hardness, and oxidation resistance in demanding environments.
We provide a wide range of transition metal Boride powder products including Tantalum Diboride (TaB2), Tungsten Diboride (WB2), Molybdenum Diboride (MoB2), and Niobium Boride Powder. Our Hafnium Diboride powder is competitively priced and ready for purchase across the United States, Canada, and Europe.
Formula | Hafnium Diboride HfB2 |
CAS Number | 12007-23-7 |
Purity | 99%～99.9% |
Synonyms | Tantalum nano powder, Tantalum spherical powders, Tantalum meta powder, Tantalum thermal spray powder, Ta microns powder |
Particle Sizes | 50-100nm, 100-200nm, 0.5-1.0um, 1.0-3.0um, 1.0-3.0um (80% concentrated distribution), 10-50um (80% concentrated distribution, spherical or nearly spherical, plasma sprayed), 50 -100um |
Appearance | Gray Black Color |
Melting Point | 3250°C |
Boiling Point: | N/A |
Density | 10.5g/cm³ at 25°C |
Oxygen level | Low and can be customized |
Description of Hafnium Boride powder
Hafnium Boride (HfB₂) powder is a gray, ultra-hard ceramic material, which has exceptional thermal stability and high melting point, around 3250°C. It offers excellent electrical and thermal conductivity, making it useful in high-temperature environments. HfB₂ is highly resistant to oxidation and corrosion, even in harsh atmospheres, which makes it ideal for aerospace and defense applications. It is commonly used in coatings, cutting tools, and ultra-high temperature components such as hypersonic vehicle parts. Its unique combination of strength, heat resistance, and conductivity sets it apart as a valuable material for extreme conditions.
Chemical Composition of Hafnium Boride powder
| Purity | B | O | Fe | Ca |
| 99.5% min. | >10.8 | <0.6 | <0.015 | <0.002 |
| Si | Mo | Al | Na | |
| <0.002 | <0.003 | <0.001 | <0.002 | |
| Particle Size (D50): Can be customized | ||||
Particle Size distribution Hafnium Boride powder
50-100nm, 100-200nm, 0.5-1.0um, 1.0-3.0um, 1.0-3.0um (80% concentrated distribution), 10-50um (80% concentrated distribution, spherical or nearly spherical, plasma sprayed), 50 -100um (80% concentrated distribution, spherical or nearly spherical, plasma sprayed) , Various particle sizes can be customized.
Hafnium Boride powder Application
Hafnium Boride (HfB₂) powder is primarily used in ultra-high temperature applications, such as coatings for hypersonic vehicles and aerospace components, due to its excellent thermal stability and oxidation resistance. It is also employed in cutting tools and wear-resistant coatings, where its extreme hardness and durability are critical. Additionally, HfB₂ finds applications in electrical and thermal conductors, particularly in environments requiring materials that can withstand extreme heat.
Hafnium Boride powder scholar article
Synthesis of Hafnium Diboride Ceramic Powders by Carbothermal Reduction
- The process of obtaining hafnium diboride via the carbothermal reduction of hafnium oxide, which involves heat treatment in a vacuum furnace and a spark plasma sintering unit, was studied. When the charge was heat treated in a vacuum furnace, hafnium diboride powder characterized by the presence of secondary crystalline phases was obtained within a temperature range of 1500 – 1700°C. Monophase hafnium diboride powder having a fine-grained uniform structure was obtained using the spark plasma sintering method at a temperature of 1500°C.
Hafnium Boride powder FAQ
What is Hafnium Diboride (HfB₂) powder used for?
HfB₂ powder is primarily used in ultra-high-temperature applications, such as aerospace thermal protection systems, hypersonic vehicle nose tips, refractory coatings, plasma cutting electrodes, and conductive ceramic components. It is also used in nuclear applications and advanced composites.
Why is HfB₂ considered an ultra-high-temperature ceramic (UHTC)?
HfB₂ has a melting point of ~3250°C, exceptional oxidation resistance, and high thermal conductivity, making it ideal for extreme heat environments like reentry vehicles and rocket nozzles.
Is Hafnium Diboride powder electrically conductive?
Yes. HfB₂ is a conductive ceramic, with relatively low electrical resistivity, which makes it suitable for plasma arc electrodes, electronic packaging, and electrically conductive structural ceramics.
Can HfB₂ powder be used for plasma spray coatings?
Yes. Our spherical Hafnium Diboride plasma spray powder is designed for high flowability and uniform deposition in thermal spray systems, providing durable, oxidation-resistant coatings.
What particle sizes are available for HfB₂ powder?
We offer submicron, nano, and custom particle size distributions, including spherical or near-spherical HfB₂ powder for plasma spraying and additive manufacturing applications.