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Hafnium Diboride HfB2 Powder CAS 12007-23-7, 99% | Lemondedudroit

Hafnium boreide, gray, with metallicluster crystals. The melting temperature is 3250 degrees Celsius. Conductivity is high and chemical properties are stable.

Particle Size: 3 um

Hafnium diboride HfB2 powder:

Hafnium bore, or Hafnium diboride, is a gray crystal that has a metallic luster. It exhibits high conductivity and has stable chemical properties. It reacts well with most chemical reagents, except hydrofluoric acids at room temperature. This is made by mixing hafnium oxide, boron or boron caride with carbon powder. It can also be reduced to hafnium trichloride and hafnium trichloride by hydrogen reduction at 2,000°C, or by reacting hafnium or boron. It can be used to make high-temperature alloys.

Hafnium-diboride exhibits high melting points, high hardness and excellent electrical and thermoconductive properties. It also has excellent neutron absorption capabilities. You will find it in many fields, including superhard materials.

As technology advances, the hafnium dioxide ceramicsand other composite materials’ applications are expanding. It’s important for research and development at both home and abroad to obtain low-cost but high-quality hafnium-diboride powder. Hafnium Diboride can be difficult to sinter. It is important to have an ultrafine powder in order to increase the sintering efficiency. While nanopowder offers superior performance, it comes at a steep cost. It is also difficult to dissolve during raw materials processing. This makes the whole process more challenging. The sub-micron hafnium triboride powder was therefore developed.

Hafnium diboride belongs to the class of Ultra-high-temperature ceramics, a type of ceramic composed of hafnium and boron. The Hafnium Boride melting temperature is 3250°C. It’s a unique ceramic with high thermal and electric conductivities. This property is shared by isostructural zirconium diboride as well. It’s a gray, metallic material. Hafnium diboride comes in a hexagonal crystal form, has a mole mass of 200.11 grams and a density at 10.5g/cm3.

Hafnium dioxideis sometimes combined with carbon, silicon, silicon carbide and/or nickel in order to increase the strength of the hafnium disboride powder during sintering. Hot pressing is a method of forming the hafnium diboride powder into a solid. The powders can be pressed together with heat and pressure.

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Hafnium diboride HafB2 powder specifications:

Hafnium diboride powder MF: HfB2

Hafnium diboride powder CAS: 12007-23-7

Hafnium diboride powder EINECS: 234-500-7

Hafnium diboride powder Density: 10.5 g/cm3

Hafnium diboride Powder Melting Point: 3250°C

Hafnium diboride powder MOQ: 1kg

Hafnium diboride powder Size: Micro, Nano and according to customer’s request

Hafnium diboride powder Package: Aluminum bag,Vacuum packing, 1kg/bag, or as your request.

Hafnium Diboride HfB2 Powder:

The ultrahigh-temperature ceramic Hafnium diboride, which is made up of hafnium & boron, can be described as a “hafnium diboride”. The melting point of this ceramic is 3250° Celsius. It’s an uncommon ceramic with high thermal and electric conductivities. This property is shared by isostructural zirconium diboride as well. It has a metallic grey color. Hafnium diboride features a hexagonal structure and 10.5 grams per cubic cmimeter.

How is Hafnium Dboride HfB2 Pulver manufactured?

Here are the steps to realize combustion synthesis high-purity hafnium-diboride powder.

1. Mix basic ingredients and diluents. Hafnium dioxide (or boric acidide) and magnesium powder are the basic raw materials. There are three percentages of hafnium oxide: from 30% to 60%; boric acid: between 10% and 40%; and magnesium powder: 15% to 50%. However, the additional diluent Hafnium Diboride weighs 0 to 3 times the amount of basic material.

2. Drying and mixing

3. Place the powdered mixture into a graphite container and place it in a sealed pressure vessel. A closed pressure vessel cools the raw material powder with circulating water. Raw materials undergo self-propagating burning and are transformed into goods.

4. Cool the product. It is made up of magnesium oxide and hafnium biboride. After the magnesium oxide has been removed, it is rinsed off with acid and then dried in a dryer to make hafnium boride powder.

Application o F Hafnium Dboride HfB2 Pulch

Hafnium-diboride can be used to make 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. This material is more resistant to oxidation when it’s combined with silicon carbide.

Temperature and pressure are key factors in the oxidation of hafnium-diboride. The protective oxide scale of hafnia begins to form at 1500°C. HfB2’s oxidation resistance is greatly reduced when the temperature rises above 1600C and the pressure drops below 1atm. In these circumstances, B2O3, which is one of HfB2’s oxidation products (boiling at 212°C) becomes extremely hot and protective oxide layers forms.

Due to its strength, and thermal characteristics, HfB2 can be used as a hypervelocity reentry vehicle. The aerodynamic shape of HfB2 will not ablate in reentry, unlike composite and polymer materials.

Hafnium diboride, a potential new material to be used in the control of nuclear reactors rods is being investigated.

Hafnium diboride, which is being studied as a microchip-diffusion barrier, also has been. It can have a thickness of less than 7 nanometers if it is synthesized correctly.

Hafnium diboride HfB2 Powder Storage Conditions:

A damp reunion can affect the HfB2 Powder dispersion performance. HfB2 should not be exposed to stress.

Packing & Shipping Hafnium Diboride HfB2 Powder:

There are many options for packing, which depend on the amount of hafnium Diboride HfB2 Powder.

Hafnium diboride HfB2 powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.

Shipment of Hafnium diboride, HfB2 Powder: can be by sea or by air?as soon after payment receipt.

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Hafnium Diboride Properties

Other Titles
hafnium boride, HfB2 powder


Compound Formula

Molecular Weight

Black Powder

Melting Point
3250 degC

Boiling Point

10.5 g/cm3

Solubility of H2O


Hafnium-Diboride Safety & Health Information

Signal word

Hazard Statements

Hazard Codes

Risk Codes

Safety statements

Transport Information

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