Zirconium carbide production method

Zirconium carbide is a hard, high melting point material and an excellent high temperature refractory material. Used as a raw material for solid propellants in rocket motors. For the production of alloy steel. It is also a raw material for the production of metal zirconium and zirconium tetrachloride, as well as promising fine ceramic materials.

Zirconium carbide production method

The carbon reduction method uses carbon to reduce zircon in an electric arc furnace to obtain zirconium carbide; it can also be used to reduce zirconium oxide with carbon in an induction heating vacuum furnace to obtain zirconium carbide.

Vapor Deposition Method Zirconium tetrachloride reacts with hydrocarbons in a hydrogen atmosphere at 900-1400 ℃, and chemical vapor deposition is used to prepare zirconium carbide.

What are the chemical properties of zirconium carbide

Dark grey metallic cubic crystals. Crispy. Melting point 3540 ℃. Boiling point 5100 ℃. Apparent density 6.70 g/cm3. Mohs hardness of 8 to 9. Insoluble in cold water and hydrochloric acid. Soluble in hydrofluoric acid and hot concentrated sulfuric acid containing nitric acid or hydrogen peroxide. It reacts with chlorine gas at high temperature to form zirconium tetrachloride. At 700°C, it burns in air to form zirconia. Does not react with water.

Zirconium carbide ZrC powder overview

Zirconium carbide (ZrC) ceramic material has high melting point, high hardness, excellent mechanical properties, high electrical conductivity (heat) rate and excellent anti-oxidative ablation performance. As one of the ultra-high temperature ceramic material systems, it can be used as heating material ZrC ceramics The lattice structure of the material is a compact cubic lattice composed of Zr atoms, and C atoms are located on the leading edge of the space shuttle's wing, supersonic scramjet, etc. lattice. Therefore, the crystal structure of ZrC ceramic material belongs to the typical NaCl face-centered cubic structure. The lattice constant of ZrC is A=0.46930nm, and the atomic radius ratio of C to Zr is 0.481.

In order to prepare ZrC ceramic powder with uniform particle size and high purity, researchers at home and abroad have carried out some researches on the preparation of ZrC. Ceramic powder. Zirconium carbide is a high melting point material with high hardness and an excellent high temperature refractory material. It is used as a raw material for solid propellants in rocket motors. For the production of alloy steel. It is also a raw material for the production of metal zirconium and zirconium tetrachloride, and is a promising fine ceramic material. At present, the main preparation methods of ZrC powder include electric arc furnace carbothermic reduction method, self-propagating high temperature synthesis method (SHS), sol-gel method and high-energy ball milling method. The steps of preparing ZrC powder by electric arc furnace carbothermic reduction are as follows

The electric arc furnace carbothermic reduction method is currently the most effective industrial preparation method. It uses zircon or pelagic zircon as a precursor, and then performs a carbothermic reduction reaction at high temperature and high pressure to generate ZrC powder. The reaction mechanism is as follows:

ZrSiO4 + 4C = ZrC + 3CO↑ + SiO↑

ZrO2 + 3C = ZrC + 2CO ↑

The temperature of the electric arc furnace should be strictly controlled during the reaction. If the reaction temperature is too low, less SiO will be removed, resulting in the formation of ZrC powder containing more impurity phases Si and C, thus affecting the purity of the ZrC powder. The ZrC powder prepared by the electric arc furnace carbothermic reduction has a simple structure and simple operation, but the cost is high, and the ZrC powder prepared is larger in size. The ZrC ceramic powder prepared by the carbothermic reduction reaction has a uniform particle size, and the particle size is less than 200 nm.

Application of zirconium carbide ZrC powder

Zirconium carbide ZrC powder particles have the characteristics of high strength, high hardness, high temperature oxidation resistance, excellent toughness and thermal conductivity. They also have optical properties such as infrared reflectivity, high visible light absorption, and the ability to store large amounts of energy. Non-hafnium zirconium carbide and niobium carbide can be used as refractory coatings for nuclear reactors. Due to the small absorption cross section of muons and weak sensitivity to radiation damage, it can be used as a coating for uranium dioxide and thorium dioxide particles in nuclear fuel. Carbide is characterized by hardness; therefore, they can be used as drills and other wear-resistant tools. Nano-zirconium carbide ZrC powder can be used in nano-structure fields such as metallurgy, chemical industry, and aviation. Used in the textile industry to manufacture nylon, fiber and carbide thermostatic textiles. Zirconium carbide is also used in ceramic and metal matrix composites, which are also made from these nanoparticles.

coating material

Non-hafnium zirconium carbide (ZrC) and niobium carbide can be used as refractory coatings for nuclear reactors. Due to the small neutron absorption cross section and weak sensitivity to radiation damage, it can be used as a coating for uranium dioxide and thorium dioxide particles. Coatings are typically deposited in fluidized bed reactors by superheated chemical vapor deposition. It also exhibits high emissivity and high current capacity at high temperatures, making it a promising material for thermophotovoltaic radiators and field emitter tips and arrays.

Carbide Tools

Because of their hardness, cemented carbide compounds can be used as drills and other tools that require wear resistance. Zirconium carbide (ZrC) is an important high temperature structural material with high melting point, high strength and corrosion resistance. The application of cemented carbide can improve the strength and corrosion resistance of the material.

nanostructured parts

Nano zirconium carbide ZrC powder can be used in metallurgy, chemical industry, aviation and other nanostructure fields. It has been used in the textile industry to make thermostatic fabrics of nylon, fibers and carbide. Composites for ceramic and metal substrates are also made from these nanoparticles.

Zirconium Carbide ZrC Powder Price

The price of zirconium carbide ZrC powder will change randomly due to factors such as production cost, transportation cost, international situation, exchange rate, market supply and demand of zirconium carbide ZrC powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find affordable nanomaterials and chemicals by providing a full range of customized services. If you are looking for zirconium carbide ZrC powder, please feel free to send an inquiry to get the latest price of zirconium carbide ZrC powder.

Zirconium Carbide ZrC Powder Supplier

As a global supplier of zirconium carbide ZrC powders, Tanki New Materials Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics, structural devices, and can provide OEM services.

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