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 propellant in rocket motors. Used in the production of alloy steel. It is also the 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; in an induction heating vacuum furnace, carbon to reduce zirconium oxide can also produce zirconium carbide.

The vapor deposition method zirconium tetrachloride reacts with hydrocarbons in a hydrogen atmosphere at 900-1400°C, and chemical vapor deposition produces zirconium carbide.

Overview of Zirconium Carbide ZrC Powder

Zirconium carbide (ZrC) ceramic material has high melting point, high hardness, excellent mechanical properties, high electrical conductivity (heat) rate and excellent oxidation and ablation resistance. As one of the ultra-high temperature ceramic material systems, it can be used as a heating material in aerospace And propulsion systems, such as the leading edge of the space shuttle wing, hypersonic scramjet, etc. The lattice structure of ZrC ceramic material is a compact cubic lattice composed of Zr atoms, and C atoms are located in the interstitial positions of its octahedrons. lattice. Therefore, the crystal structure of ZrC ceramic material belongs to the typical NaCl face-centered cubic structure. The ZrC lattice constant a = 0.46930 nm, 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 conducted some research on the preparation of ZrC. Ceramic powder. Zirconium carbide is a high melting point material with high hardness and is an excellent high temperature refractory material. It is used as a raw material for solid propellants in rocket motors. Used in 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 are electric arc furnace carbothermic reduction method, self-propagating high temperature synthesis method (SHS), sol-gel method and high-energy ball milling method. The steps for preparing ZrC powder by electric arc furnace carbothermal 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 the precursor, and then generates ZrC powder through a carbothermic reduction reaction under high temperature and high pressure. 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 eliminated, which will result in the formation of ZrC containing more impurity phase Si and C powder, thereby affecting the purity of the ZrC powder. The ZrC powder equipment prepared by electric arc furnace carbothermal reduction has a simple structure, simple operation, but high cost, and the prepared ZrC powder has a larger size. The ZrC ceramic powder prepared by the carbothermic reduction reaction has a uniform particle size, and the particle size is less than 200nm.

Applied ZrC powder of zirconium carbide

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 reflectance, 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 low absorption cross section of the meson, the radiation damage sensitivity is weak, and it can be used as a coating for uranium dioxide and thorium dioxide particles in nuclear fuel. Cemented carbide is characterized by hardness; therefore, they can be used as drill bits and other wear-resistant tools. Nano-zirconium carbide ZrC powder can be used in nano-structure fields such as metallurgy, chemical industry and aviation. In the textile industry, it is used to manufacture nylon, fiber and cemented carbide constant temperature textiles. Zirconium carbide can also be used in ceramic and metal matrix composites 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 its low neutron absorption cross-section and weak sensitivity to radiation damage, it can be used as a coating for uranium dioxide and thorium dioxide particles. The coating is usually deposited in a fluidized bed reactor by superheated chemical vapor deposition. It also has high emissivity and high current capacity at high temperatures, making it a promising material for thermal photovoltaic radiators and field emitter tips and arrays.

Carbide Tool

Due to its hardness, cemented carbide compounds can be used as drill bits 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 nano-structure fields such as metallurgy, chemical industry, and aviation. In the textile industry, it has been used to manufacture nylon, fiber and cemented carbide thermostatic fabrics. Composite materials for ceramic and metal substrates are also made from these nanoparticles.

Zirconium Carbide ZrC Powder Price

The price of zirconium carbide ZrC powder will vary with random factors such as production cost of zirconium carbide ZrC powder, transportation costs, international situation, exchange rate and market demand for zirconium carbide ZrC powder. Tianki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality and low-cost nanomaterials and chemicals by providing a full set 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 powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering 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.