hafnium

Hafnium Boride

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hafnium boride (HfB2) is an ultra-high temperature ceramic containing hafnium and boron. It has a melting point of 3250 degrees Celsius and is an unusual ceramic with relatively high thermal and electrical conductivity.

Applications: Wear resistant coatings, refractory materials and cutting tools. Also employed as a nuclear reactor control rod due to the presence of boron element.

Molecular structure of hafnium boride: A mixture of the oxides of boron and hafnium with traces of carbon or oxygen, in a tetragonal crystal system.

Characteristics of hafnium boride: Strong anti-oxidation ability, very good insulator and high hardness. It is a potential candidate material for high-temperature ceramics and wear-resistant materials.

Process of synthesis: This compound is synthesized via a carbothermic reduction of hafnium oxide, boron carbide and graphite followed by a borothermic reduction of boron and hafnium. The product has high purity, good dispersibility, small grain size and narrow distribution range.

Typical use: HfB2 is used as a refractory and tribological coating due to its high thermal and electrical conductivities. It is also a potential new material for nuclear reactor control rods and hypervelocity re-entry vehicles like ICBM heat shields or aerodynamic leading-edges, due to its strength and thermal properties.

American Elements produces several standard grades when applicable, including Mil Spec (military grade), ACS, Reagent and Technical Grade, Food, Agricultural and Pharmaceutical Grade, Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available.

What is Hafnium Carbide HfC Used For?

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Hafnium carbonide (HfC), a grayish, black powder with a face-centered cubic shape, is also known. It has a high melting value (3890), and is therefore a good material to use for the lining of high melting crucibles.
Hafnium carbonide has a high elastic coefficient, low thermal conductivity, good electrical, thermal, and impact resistance. This makes it a great material for rocket nozzle materials.

For what purpose is Hafnium Carbide HfC used?
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 and wing fronts.

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

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 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 most zirconium mineral at concentrations up to 5%. Actually, hafnium and zirconium are very similar in chemistry so it is difficult to separate the elements. Most hafnium that is commercially available comes as a result of zirconium reprocessing.
Hafnium is earth’s 45th most abundant element. It accounts for approximately 3.3 parts in million (ppm), of the 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/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.
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Hafnium diboride applications and characteristics

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What is hafnium Diboride Powder? Hafnium Diboride is an ultra-high-temperature ceramic that is made from hafnium, boron. It is an unusual ceramic that exhibits high heat conductivity and conduction. It is a metallic gray color. Hafnium dioxide has a hexagonal structure and a density 10.5 g/cc. It can melt at approximately 3,250 degrees Celsius. Hafnium diboride’s resistance to oxidation is affected by temperature and pressure. At 1500 degC and 1atm, the protective oxide layer forms. HfB2’s antioxidant activity decreases when temperatures rise above 1600degC and pressure drops below 1atm. In these conditions, B2O3, one of the oxidation products from HfB2, boils at a higher temperature than B2O3, creating a protective layer of oxide.
Uses of hafnium diboride powder
Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry aircrafts, such as an INTERCONTINENTAL missile heat shield or pneumatic front. HfB2 has an aerodynamic form and doesn’t ablate upon reentry, unlike polymers and composites.
Hafnium Diboride is being considered as a new material to be used in nuclear reactor control rods.
It is also being investigated as a diffusion shield for microchips. If the barrier is correctly synthesized, it can be less than seven nanometers thick.
Hafnium diboride powder characteristics :
Hafnium Diboride is an ultra-high temperature ceramic that’s made from hafnium, boron. It melts at approximately 3,250 degrees Celsius. It is an unusual ceramic that exhibits high heat conduction, electrical conductivity, and the same properties as zirconium diboride and titanium. It’s a gray metallic material. Hafnium Diboride is hexagonal in crystal structure and has a molecular mass of 200.11g/mol. It also has a density 10.5g/cc.
How is hafnium Diboride powder manufactured?
These are the steps that enable you to realize combustion synthesis for high purity hafnium Diboride Powder.
1. Mix base ingredients and thinner. Mix base ingredients with thinner.
2. Dry and mix
3. The graphite powder should be evenly mixed. The closed pressure vessel is then cooled with circulating waters. The reaction is performed under 0-5mpa pressure, or in a vacuum protected by an atmosphere. By self-propagating burning, raw materials can be transformed into products.
4. Cool the product. It is a mixture between hafnium dioxide and magnesium oxide. To obtain hafnium Diboride powder, magnesium oxide must be removed by picking.
Hafnium diboride powder supplier
(aka. Technology Co. Ltd. (aka. Our company has developed a number of materials. Our company’s Hafnium Diboride is high in purity, fine particle size and has low impurities. Send us an e-mail or click on this link Needed products Send an inquiry

What is Hafnium Diboride Powder?

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What is it? Hafnium Diboride Powder ? Hafnium boreide is a gray-colored crystal with metallic luster. It has high conductivity, and stable chemical property. It is indistinguishable from all other chemical reagents at room temperature, with the exception of hydrofluoric acids. It can be prepared by heating hafnium oxide, boron carbonide, and carbon powder. It is used to make superalloys.
The key features of Hafnium Diboride Powder
Hafnium Diboride is known for its high melting point, high hardness and excellent electrical and thermal conductivity. It also has high neutron absorption and performance. It can be used to make electrode materials, super-hard materials and neutron absorption substances, as well as ultra-high-temperature materials.
Hafnium Diboride Properties
Other Titles hafnium boride, HfB2 powder
No. 12007-23-7
Combination Formula HfB2
Molecular Weight 200.112
Appearance Black Powder
Melting Point 3250 degC
Boiling Point N/A
Density 10.5 g/cm3
Solubility of H2O N/A
Exact Mass 201.965161
Hafnium Diboride HfB2 Powder CAS 12007-23-7
Applications of Hafnium Diboride Pulver
1. Hafnium Diboride in wear-resistant coats Because of its exceptional fire resistance, it can also be used in ultra high temperature composite materials (SiC) with silicon carbide. This material is more resistant to oxidation when it has been combined with silicon carbide.
2. The temperature and pressure determine the resistance to oxidation of hafnium dioxide. At 1500 degrees Celsius and 1 atmosphere pressure, a protective oxide of hafniumoxide is formed. HfB2’s oxidation resistance will decrease significantly if it is heated above 1600 degrees Celsius and the pressure is below 1 atmosphere. These conditions will cause the boiling temperature for B2O3 (one oxidation product of HfB2) to exceed 1400°C. A protective oxide layer will then form.
3. Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry vehicle, such as heat shields, for intercontinental ballistic missiles, or aerodynamic fronts. HfB2 forms aerodynamic shapes unlike composite and polymers, and does not ablate during reentry.
4. Hafnium Diboride was also investigated as a possibility for new materials in nuclear reactor control rods.
5. Hafnium-diboride is being investigated as a diffusion barrier for microchips. If the synthesis is correct the barrier thickness could be less than 7 nanometers. The supplier Hafnium Diboride Powder
Tech Co., Ltd. () is a professional boride powder Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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Discovery and Application of Hafnium Elements with High Melting Points

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Hafnium Metal is First Extracted D. Koster and Hervez, a Swedish chemist and physicist from the Netherlands, found hafnium among zircons in Greenland and Norway. The element was named Hafnium by the Latin name of Copenhagen. Hervis and Koster, in 1925, separated titanium and zirconium using the separation crystallization containing flaoro salts. They then reduced the hafnium with metallic sodium to make pure hafnium. Herviz made a tiny sample of pure hafnium.

Uses of hafnium-metal

Hafnium, which emits electrons quickly, is very useful. For high voltage discharge tubes, electrodes are made from alloys of hafnium or tungsten. They are used extensively in Xray cathode production and the manufacturing of tungsten. A key material for the nuclear energy industry is pure hafnium. This metal has great plasticity and high resistance to corrosion. A neutron absorber that can capture neutrons from hafnium is the ideal choice. It can be used to protect and control the reactor’s atom reactor. Rocket boosters can be powered by Hafnium Powder ACTS. In the electrical sector, it is possible to make anodes from Xray tubes. Hafnium alloys can serve as front guards to rocket nozzles, glider-reentry vehicles and can also be used to produce tool steels and resistance materials. Hafnium may be added to heat resistant alloys like tantalum and molybdenum. Rmcplant (aka. Rmcplant is an advanced material. With over 12 years’ experience, Rmcplant is an established global supplier of chemical material. We produce [( Hydrogenated hafnium] that is high in purity, small particles and very low in impurity. We can help you if your requirements are lower.
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The Applications of Hafnium Diboride Powder

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Overview of Hafnium Diboride Pulver
Hafnium boride This is a gray-colored crystal with metallic luster. It exhibits high conductivity and is stable in chemical properties. It is indistinguishable from all other chemical reagents at room temperature, with the exception of hydrofluoric acids. It can be prepared by heating hafnium oxide, boron carbonide, and carbon powder. It is used to make superalloys.
Hafnium Diboride has a high melting point, high hardness and excellent electrical and thermal conductivity. It also exhibits good neutron absorption properties. It can be used to make electrode materials, neutron absorption materials, ultra-high-temperature materials, and super-hard materials.
The applications of hafnium dioxide ceramics and composite materials have expanded with the advent of material technology. At home and abroad, it is a major R&D priority to find low-cost, high-quality hafnium dioxide powder. Hafnium Diboride is hard to sinter. To improve the sintering performance it is important to obtain ultrafine powder. While nano-powder offers superior performance, it is costly and difficult to disperse during raw materials processing. The development of submicron hafnium triboride powder has been gaining increasing attention.
Hafnium Diboride HfB2 Powder CAS 12007-23-7
What are the uses for Hafnium Diboride Powder
Hafnium Diboride in wear-resistant coats Because of its exceptional fire resistance, it can also be used in ultra high temperature composite materials (SiC) with silicon carbide. This material is more resistant to oxidation when it has been combined with silicon carbide.
Temperature and pressure determine the resistance to oxidation of hafnium-diboride. At 1500 degrees Celsius and 1 atmosphere pressure, a protective oxide of hafniumoxide is formed. HfB2’s oxidation resistance will decrease significantly if it is heated above 1600 degrees Celsius and the pressure drops below one atm. These conditions will cause the boiling temperature for B2O3, one of the HfB2 oxidation products, to exceed 1200°C. A protective oxide layer will then form.
Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry vehicle, such as heat shields, for intercontinental ballistic missiles, or aerodynamic fronts. HfB2 forms aerodynamic shapes unlike composite and polymers, and does not ablate during reentry.
Hafnium Diboride has been also investigated as a possibility for new materials in nuclear reactor control rods.
Hafnium-diboride is being investigated as a diffusion barrier for microchips. If the synthesis is correct the barrier thickness could be less than 7 nanometers.
The main supplier of Hafnium Diboride Powder
Tech Co., Ltd. () is a professional Boride powder Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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Hafnium Hydride

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hafnium hydride is a refractory tetrahedral crystal that forms as an intermediate in the process of making hafnium powder. It is a valuable material for applications that require high resistance to oxidation and abrasion.

The hydride can be prepared by a reversible reaction of hafnium with hydrogen gas in a pressure and temperature environment. The proportion of hydrogen absorbed depends on the temperature and pressure. The hydride can be made from mass hafnium metal or from the amorphous precursor, hafnocene difluoride.

Hydrogen-rich hafnium hydrides are important materials in search of exotic properties such as high-Tc superconductivity. A metastable stochiometric HfH9 with Tc of 110 K at 200 GPa has been predicted using structural searches and first-principle calculations. The hydride is stabilized by unique hydrogen tubes intercalated within the HfH3 framework, each tube giving 0.876 electrons from the framework.

Reversible hydrogenation of olefins in the presence of catalytic amounts of the hydride complex (Hf(CH2CH2R)-n(Xy-N3N)) is observed at 25 degC. The complex reacted with olefins to produce the anti-Markovnikov insertion product [Hf(CH2CH2R)(thf)(Xy-N3N)]+, indicating that the hydride possesses a strong hydrogen affinity and a catalytic hydrogenation activity.

Resistive switching memories based on amorphous-nanocrystalline hafnium oxide films have been investigated and shown to possess excellent flexibility in their resistivity spectra. The annealing of the oxide films was found to influence the resistivity switching properties.

An etching technique for cleaning a hafnium oxide film has been developed. A hafnium oxide layer was deposited on an atomic layer deposition reactor and then etched off by a flow of hydrogen chloride gas at 1173 K. This resulted in a reduction of the oxide film weight that was comparable to that of hafnium tetrachloride.

The Applications of Hafnium Disilicide Powder

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What is it? Hafnium Powder ?
Hafnium Silicide is a silica of transition metals, which can also be used as an intermetallic compound.
The key features of Hafnium Disilicide Pulver
Hafnium silicide, HfSi2 dust (CAS 12401-56-8) has high melting points, high corrosion resistances, high oxidation resistants, and good electrical conductivity.
Applications for Hafnium Disilicide Pulver
1. Prepare an organic electronic luminescence device. It includes an anode with a light-emitting and cathode layers, as well as a packaging cover that is stacked in order. The packaging cover protects the light-emitting layers and the cathode of the anode. The packaging cover includes a silicon oxide layer and a barrier layers formed on the silicon carbonitride. The above-mentioned organic electronluminescent device has a very long life span. The invention provides a method to prepare the organic electrodeluminescent device.
2. Preparation of a silicone-germanium alloy-based thermoelectric device. The silicon-germanium alloy-based thermostatic element is composed a silicon-germanium thermoelectric layer and an electrode layer. A barrier layer lies between the silicon-germanium layer and the silicon nitride. The provided silicon-germanium-alloy-based thermoelectric element can withstand high-temperature accelerated long-term tests. Additionally, the provided preparation method is easy to use, reliable, low-cost, requires no special equipment and can be used for large-scale manufacturing.
3. A high temperature, oxidation resistant ceramic composite coating can be prepared. The composition of the composite film is as follows: the coating is composed of intermetallic compound, refractory carbide, and refractory metal. The thickness of the coating ranges from 10 to 50 millimeters. The refractory metallic is one or many of molybdenum and tantalum as well as zirconium, zirconium, and hafnium. The intermetallic compounds are composed of one or more refractory metals.
Hafnium Silicide HFSi2 Powder Properties
Other Titles hafnium disilicide, hfSi2
No. 12401-56-8
Combination Formula HfSi2
Molecular Weight 234.66
Appearance Powder
Melting Point N/A
Solubility of in water N/A
Density 7.6 g/cm3
Purity 99.00%
Particle size 5-10um
Boling Point N/A
Specific heat N/A
Thermal Conductivity N/A
Thermal Expansion N/A
Young’s Modulus N/A
Exact Mass 235.900402
Monoisotopic 235.900402
Hafnium Silicide HFSi2 Powder, CAS 12401-56-8
Hafnium Disilicide powder supplier
Tech Co., Ltd. () is a professional silicide protein Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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What is Hafnium carbide used for?

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Hafnium carbonide, a gray-black powder has a square-center cubic structure with a 3890 melting point. It has a very high melting point and can be used to line metal melting vessels with high melting points.
Hafnium carbid has an excellent elastic coefficient and high electrical and/or thermal conductivity. Also, it’s a good choice for rocket nozzle materials.

Why is Hafnium Caride so important?
Hafnium carbid is a ceramic material which can withstand high temperatures as well as oxidation. This has both the benefits of low thermal expansion and good electrothermal conductivity. Hafnium carbid is used for the manufacture of rocket nozzles and wing fronts.

Hafnium carbide is extremely hard, and it can be combined with cemented carbide to make cemented carbide. It is used extensively in cutting tools, mould making.

Hafnium carbonide is a good choice for aerospace because of its high elastic coefficient. You can also use it in nozzles, high temperature lining, and arc electrodes.

Hafnium carbonide is highly versatile and can be used in high temperatures due to its solid phase stability as well as chemical corrosion resistance. The field emission performance can also be enhanced by the vaporization of HfC films on carbon nanotube catathode.

By adding hafnium carbid to Chand C, you can improve the hafnium-carbidide’s ablation resistance. Hafnium carbonide is widely used for its excellent chemical and physical characteristics.

Hafnium carbide Price
Price is affected by many things, such as the demand and supply in the market and industry trends. Economic activity. Unexpected events.
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Hafnium carbide Supplier
Technology Co. Ltd. (), is a respected Hafnium-carbidide supplier and Hafnium-carbidide manufacturer. It has over twelve years’ experience. All of our products can be shipped worldwide.

Feel free to email us to request high-quality Hafnium carbonide powder. (brad@ihpa.net)

Why Hafnium disilicide is a refractory intermetallic compound?

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What exactly is hafnium-disilicide? Hafnium disilicide This is a form of transition metal silicide. It is characterized by a high melting temperature, high hardness and wear resistance as well as oxidation resistance. It can be used to make ceramics, as well as various functional and high-temperature resist components. Hafnium diilicide nanomaterials have special optical and electrical properties that could prove useful in optoelectronics.

The preparation of hafnium-disilicide
There are two main ways to disillicide hafnium: the direct synthesis sponge hafnium or the carbon reduction of hafnium oxide, which is the resynthesis metal silicon. Sponge hafnium can be directly synthesized by direct synthesis. It is expensive to produce sponge hafnium, but it is easy to make silicon and hafnium. The mobility of silicon in liquid is poor and it cannot be mixed with silicon. Simple silicon is the most common type of silica. It is possible to synthesize silicon metal by reacting hafnium oxide with carbon. This involves reducing hafnium dioxide with simple carbon in order to make metal hafnium. Only excessive carbon is allowed to reduce hafnium oxide. This will ensure that metal hafnium has no carbon. The silicification and subsequent steps will create silicon carbide impurities. Insufficient carbon will cause a slight amount of hafniumoxide that cannot be reduced. Hafnium oxide will form after silicification. It can cause problems with the purity of products and not meet high purity standards.

Use of hafnium diilicide
Hafnium silicide is a transition metal silicide. This is a form of refractory intrametallic compound. The unique chemical and physical properties of hafnium disilicide have allowed it to be successfully used in fields such as complementary metal oxide semiconductor devices and film coatings. They also serve to make electric heating elements and photovoltaic material. The preparation requirements for the transition metal silicide are not met by traditional methods of metallurgy, physical or other methods. For the widespread application of transition silicide nanomaterials, it’s important to identify a method that is simple, manageable and easily adaptable.

Price of hafnium Disilicide
Price of hafnium-disilicide products will depend on their purity and size. The purchase volume may also have an effect on its cost. Large quantities of small amounts will result in a lower price. On our official website, you can see the price for hafnium-disilicide.

H afnium disilicide supplier
The Advanc3dmaterials Advanced Material Nano Technology Co. Ltd. Luoyang City is located in Henan Province, China. This city, called “Advanc3dmaterials”, has a reputation for being a trusted and reliable global supplier of chemical materials. This company is a trusted supplier and manufacturer of high quality chemical materials and nanotechnology products. Its 12 year-long history includes the production and sale of ultra-high standards in chemicals, such as hafnium diilicide, nitride and graphite powders, as well as sulfide and nitride powders. You can contact us at any time to inquire about high-quality but cost-effective hafnium dilicide.

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