Hafnium carburide (HfC), a chemical compound composed of hafnium, is a combination of carbon and hafnium. With a melting-point of approximately 3900 degrees Celsius, it is among the most refractory binaries known. The compound has a very low oxidation resistance. Oxidation starts at temperatures of as low as 432 degC. It is possible that this compound will be used as a heat shield in future spacecraft.
Is hafnium carbide toxic?
Hafnium Oxychloride was found to be toxic by intraperitoneal route during animal studies. Hafnium-related industrial poisonings have not been reported. Carbides - Pure carbon is very low in toxicity and can even be ingested as charcoal or graphite.

What is Hafnium Carbide HfC made from?
Hafnium carburide powder can be prepared by reducing the hafnium oxide and carbon at temperatures between 1800degC and 2000degC. This requires a longer time to completely remove oxygen.
Hafnium carburide is a brittle, dark gray solid. It can be produced by heating elements together or by reacting hafnium chloride with methane. Hafnium oxide, or metal sponges can be obtained in sufficient quantities for the large-scale production zirconium. In an industrial setting, hafnium can be produced from hafnium oxide or metal sponge by vacuum-carburizing it in hydrogen. The carbide consists of almost the full amount of carbon (6.30%degC), with up to 0.1% in free carbon. The hafnium carbon obtained is not true stoichiometric, but a solution of carbon at a particular interstitial position in the face-centered cubic structure.
Carbonization will not dissolve in hydrofluoric solution at room temperatures, but is inert with most reagents. Carbonization is exothermic with halogen between 250 and 500degC, forming hafnium trihalide. Above 500degC it forms hafnium oxygen. Hafnium carburide loses some carbon when hydrogen is present. Titanium Carbide Powder
Hafnium Carbide (HfC), which has the highest melting points of all binary alloys, has a wide range of high-temperature uses. It's a good choice for high-temperature components, such as scramjets or rocket nozzles. Carbonization can be used for hard coatings. These are usually applied using processes like plasma spraying. HfC structural material can also be turned into high-temperature parts or used for thermal insulation.

Hafnium carburide (HfC), which has a melting point greater than 3890degC and is a refractory compound, is made up of two components. HfC or NBC can be used to coat nuclear reactors. Ta4HfC5 mixed carbide has a melting point of 4215degC.

1. Hafnium carbide can be used to add to cemented carbon, which is used widely in the cutting tool and mold industry.
2. Hafnium carbide can be used as a material for rocket nozzles, in the aerospace industry, or on the arc, electrode, or high-temperature liner of the rocket.
3. Hafnium carbide is used as a control rod in nuclear reactors. It is an excellent metal for nuclear reactor rods.
4.Used for ultra-high temperature ceramics.
5.Reactant to synthesize hafnium containing organometallic Polymer
6.For coating.

The substance with highest melting point on Earth
The compound that has the highest melting temperature on Earth is hafnium carbide, with a melting temp of 3890 degrees Celsius. The hafnium compound known as tetratantalum Hafnium Pentacarbide has the highest melting temperature on Earth. Its melting point is 4215.
Hafnium has an atomic weight of 72 and is a metallic silvery gray transition metal. The earth's surface contains a tiny amount, 0.00045%. It is commonly associated with the zirconium element in nature. There are six naturally stable radioactive isotopes.
The hafnium is so popular as a forward protection layer for rockets and aircraft because it has a high corrosion and temperature resistance.

(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer of high-quality nanomaterials & chemicals with over 12 year's experience. Currently, we have successfully developed a number of materials. The Hafnium Carbide HfC powder The p Our products are high in purity, have fine particles, and contain low impurities. Click the product you need to order or send us an e-mail. Send us an inquiry

What is Hafnium Carbide? Hafnium carburide (HfC), a chemical compound composed of hafnium, is a combination of carbon and hafnium. Its melting temperature is approximately 3900degC. The oxidation resistance of this compound is extremely low. At 430degC, oxidation begins. This compound might be used in the heat shield of future spacecraft.
Carbonizations are usually devoid of carbon. Therefore, their composition is typically expressed as HfCx (x = 0,5 to 1,0). The crystal structure is cubic (salt). Hafnium carburide is normally synthesized in an atmosphere of inertness or reduction with hafnium (HfO2) oxide and carbon. The reaction is carried out at a temperature between 1900-2300degC. Hafnium carburide can be dissolved in a number of compounds such as ZrC or TaC. ).
Hafnium oxide (IV), which is obtained by reducing powdered hafnium with carbon, has a temperature of 18002000degC. To remove all the oxygen, it takes a lot of time. Chemical vapor deposition can also produce a coating of high purity HfC from a mixture containing methane, hydrogen and vaporized chlorine chloride (IV). HfC's limited use is due to its high synthesis costs and technical complexity.
HfC-x undergoes a change from paramagnetism to diamagnetism when x is increased. TaC has the same structure as HfC but exhibits the opposite behavior.

What is hafnium carbide used for?
Hafnium carbide is an excellent material for rockets. It can also be used for ceramics, other industries and as the nose of space rockets which re-enter our atmosphere.

How powerful is hafnium carbide?
W-based or Mo-based alloys that are dispersed with Hafnium Carbide exhibit superior tensile strength and stress rupture properties than those that do not contain HfC. MoHfC is stronger than WHfC at 1400K pressure, based on density compensation.
Hafnium carbide has a density 12.7g/cm3 as well as a melting temp of 3890degC. It is the most melting point known among single compounds. Volume resistivity of hafnium carbide is 1.95x10-4O*cm (2990) and thermal expansion coefficient 6.73x10-6/. In general, hafnium (HfO2) is combined with carbon to create powders in an inert environment. Hafnium carburide can react at a temperature of 1900-2300°C and form a solid with many compounds. It is characterized by a high melting temperature and high elastic co-efficient, as well as good electrical and thermal conductivity.

Is hafnium carbide poisonous?
In studies on animals, the intraperitoneal routes of trichlorooxidation were toxic. No industrial poisoning has been reported. Carbide : Pure carbon is very low in toxicity for humans. It may be converted into graphite and charcoal, or it can even be safely consumed. Why does hafnium carburide have a melting point so high?
Hafnium carburide is resistant to corrosion as it forms an oxide layer on the surface. A report in "Chemical World", states that among the three element compounds, the carbide mixed of tungsten hafnium, has the highest melting points of any compound known at 7,457° Fahrenheit (4125° Celsius).

What is Hafnium and what does it do?
Hafnium can be found in zirconium-containing mineral zirconium. Hafnium shares many similarities with zirconium in nature. The amount of HfO2 found in zircon for industrial use is between 0.5-2 %. Beryllium zircon found in secondary zirconium can contain up to 15 percent HfO2. A metamorphic stone containing more than 5% HfO2 is also used to produce zircon. Both minerals are small and have never been used by the industry. Hafnium mainly comes from the production of zirconium.

Hafnium is smelted in a similar way to zirconium and usually divided into 5 steps.
First, the ore is decomposed. The first method is to chlorinate zircon in order to get (Zr Hf)Cl4. At 600, the zircon melts with zircon and NaOH. The (Zr Hf O2) is transformed to Na2 (Zr Hf O3) and the siO2 into Na2SiO3, then removed by water. After dissolving in HNO3, the Na2 (Zr,Hf)O3 solution can be used to separate zirconium from hafnium. The colloid SiO2 makes extraction with solvents and separation difficult. After immersion in water, 3Sinter the K2SiF6 and obtain K2(Zr & Hf). The solution is able to separate zirconium from hafnium through fractional crystallization.

Separation of hafnium from zirconium is done by using solvent extraction, with the HNO3 and TBP (tributylphosphate-hydrochloric acid) systems. Multi-stage fractionation based on the difference in the vapor pressure between HfCl4 (ZrCl4) and ZrCl4 (HfCl4 melts) under high pressure has been studied for a long time. This technology can eliminate the second chlorination and reduce costs. Due to the corrosion of (Zr, HF)Cl4 as well as HCl it is difficult to find fractionation columns that are suitable. They will also decrease the quality of ZrCl4 or HfCl4 while increasing the cost.

The fourth step is purification of HfCl4 and magnesium reduction. The fourth stage is the purification of HfCl4 followed by magnesium reduction. This is the same process as purification and reduction ZrCl4, with the semi-finished product being crude sponge hafnium. The fifth step involves vacuum distillation to remove MgCl2 as well as recover the excess metal magnesium. The final product will be sponge metal hafnium. If sodium is substituted for magnesium in the reducing agents, the fifth step will change to water immersion.

To avoid spontaneous combustion, take extra care to remove the hafnium crucible sponge. The sponge hafnium pieces need to be broken up into smaller pieces. These pieces will be used as electrodes for consumables. It is also important to avoid spontaneous combustion when breaking the sponge hafnium. The iodide decomposition technique is used to purify sponge hafnium in the same manner as zirconium and titanium. The control conditions differ slightly from zirconium. The temperature of the sponge hafnium in the iodination chamber is 600degC. Meanwhile, the temperature of the wire in the middle of the tank is 1600degC. . Hafnium is processed and formed by forging and extrusion. Hafnium is primarily used to produce control rods for reactors. Hafnium application
Pure hafnium exhibits plasticity, is easy to process, has high temperature resistance, and resists corrosion. It is used in the nuclear energy industry. Hafnium, with its large thermal neutron section, is an ideal neutron absorption device that can be used for control rods and protection devices in an atomic power reactor. Hafnium is used in rocket propellers. In the electrical industry, cathodes for X ray tubes can also be produced. Hafnium-based alloys are used in the manufacture of tool steel, resistance materials and rocket nozzles. Hafnium adds heat resistance to tungsten, tantalum, and molybdenum. HFC's high melting and hardness make it a suitable cemented carbide. The melting temperature of 4TaC*HfC amounts to 4215degC. This is the highest melting temperature compound.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has been providing high-quality Nanomaterials and chemicals for over 12 Years. Our company is currently developing a number of materials. Our Hafnium Carbide (HfC), powder is of high purity and has a low impurity level. Contact us if you need to.

Hafnium carbonide (HfC), a grayish, black powder, has a face-centered cubic shape. It has a very low melting point (3890), which is why it is an excellent material to use as a lining for metal melting crucibles.
Hafnium carbonide has a high elastic coefficient, low thermal conductivity and good impact resistance. This makes it a great material for rocket nozzle materials.

What is Hafnium Carbide HfC used for?
Hafnium carbonide is a ceramic material with high temperature and oxidation resistance. It also has the advantages that it is low in thermal expansion and electrothermal conductivity. Hafnium carbid is used for the manufacture of rocket nozzles, wings front, and other components. This material is mainly used in aerospace, industrial ceramics, and other fields.

Hafnium carbide is hard, can be used to add cemented carbide, and can form solid solution together with many compounds (such ZrC or TaC). It has been used extensively in the production of cutting tools and moulds.

Hafnium carbid has a high elastic coefficient, low thermal expansion coefficient, good electrothermal conductivity, and a small thermal conductivity. These properties make it suitable for rocket nozzle materials. It can also be used to make nozzles, high temperature linings, and arc or electrolysis electrons.

Hafnium carbid has excellent solid phase stability and chemical resistance. This makes it ideal for high temperature environments. The field emission performance can also be improved by vaporizing HfC film on the carbon nanotube catathode.

It is possible to increase the hafnium-carbidide's ablation resistance by adding hafnium-carbid to Chand C. Hafnium carbonide is widely used in high-temperature materials due to its excellent chemical and physical properties.

How hard is Hafnium-Carbide HfC?
Hafnium carbonide has a high hardness (>9 Mohs). HfC can only be used in limited circumstances due to its high cost and technical complexity.

What is Hafnium, and How is it Used?
Hafnium can be described as a shiny, silver-gray, transition metal. It was first discovered in 1923. Hafnium is rarely dissociated in nature but can be found in zirconium mineral at concentrations up to 5%. Actually, hafnium and zirconium are very similar in chemistry so it is difficult to separate them. The majority of commercial hafnium is a byproduct of zirconium reining.
Hafnium is earth's 45th most abundant element. It accounts for about 3.3 parts in million (ppm), of earth's crust. Hafnium can resist corrosion due to the formation an oxide film on its exposed surface. It is indestructible to water, air, bases, acids, except hydrogen fluoride, and it does not react with oxygen.

Hafnium's remarkable corrosion resistance and high neutron absorbency make it an ideal material for nuclear submarines and control rods for nuclear reactors. This is key technology in maintaining fission reaction. The control rod prevents the fission chain reaction from accelerating out of control and keeps it active.
Hafnium is used to make electronic equipment like capacitors and cathodes. It also makes ceramics, photographic flash, and bulb filaments. It can be used to bind to vacuum tubes and remove trace gases. Hafnium is often alloyed to other metals like iron, titanium and niobium. Examples include aerospace applications like space rocket engines, which use heat-resistant hafnium and niobium alloys.

Hafnium Carbide HfC Powder Supplier
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super-high-quality chemicals.
You can contact us for high-quality Hafnium Caride powder . (brad@ihpa.net)