Product Name: Zirconium Carbide (ZrC) 
Specification: 0.8-10um (D50) 
Appearance: Irregular 
Color: Black Grey 
Features: High hardness, high temperature resistance, corrosion resistance, low thermal expansion system 
Usage: Aerospace, chemical, mechanical, industrial, scientific research, medical equipment and other fields

Zirconium carbide 
Molecular formula: ZrC 
Cas：12070-14-3 
Appearance: Black gray powder 
Molecular weight: 103.23 
Melting point: 3540 ° C 
Density: 6.73g/ml 
EINECS：235-125-1 
chemical property: 
Dark gray cubic crystal with metallic luster, brittle in nature. Melting point 3540 ℃. Boiling point 5100 ℃. The apparent density is 6.70g/cm3. Mohs hardness is 8-9. Insoluble in cold water and hydrochloric acid. Soluble in hydrofluoric acid and hot concentrated sulfuric acid containing nitric acid or hydrogen peroxide. Reacts with chlorine gas at high temperatures to produce zirconium tetrachloride. At 700 ℃, it burns in air to produce zirconia, which does not react with water. Zirconium carbide powder has properties such as high temperature resistance, high hardness, good thermal conductivity, and good chemical stability. It is soluble in nitric acid, hot concentrated sulfuric acid, hydrofluoric acid, and aqua regia, and easily soluble in molten caustic alkali. 
Preparation method: 
Zirconium carbide can be prepared by direct synthesis, carbothermal reduction, sol gel method, self propagating combustion synthesis, plasma chemical vapor synthesis, mechanical alloy method and low-temperature synthesis, etc. The industry generally adopts carbon reduction ZrO2. 
Main purpose: 
1. Application of zirconium carbide in fibers: Different contents and addition methods of zirconium carbide silicon carbide micro powder have an impact on the near-infrared absorption performance of fibers. When the content of zirconium carbide or silicon carbide in the fiber reaches 4% (by weight), the near-infrared absorption performance of the fiber is excellent. Adding zirconium carbide and silicon carbide to the shell layer of the fiber has a better near-infrared absorption effect than adding them to the core layer. 
2. Zirconium carbide is used in new insulation and temperature regulating textiles, insulation nylon and polyester fibers, temperature regulating fibers, heat storage and insulation polyester materials, insulation conjugated polyester fibers, sunlight heat storage and insulation finishing, Tai Chi steam lung vests, and aerospace technology heating materials; Significantly improve the strength and fatigue resistance of carbon fiber, enhance wear resistance and high temperature resistance, and apply it in the modification of aerospace carbon fiber materials. Zirconium carbide has the characteristics of efficient absorption of visible light and reflection of infrared radiation. When it absorbs short wavelength energy below 2 μ m, which accounts for 95% of sunlight, it can store the energy in the material through thermal conversion. It also has the characteristic of reflecting infrared wavelengths exceeding 2 μ m. Zirconium carbide has ideal heat absorption and storage properties, and the product can be applied to new insulation and temperature control textiles. 
3. Zirconium carbide is used in hard alloys, powder metallurgy, abrasives, etc.: Zirconium carbide is an important high-temperature structural material with high melting point, high strength, and corrosion resistance. Its excellent characteristics make it have great application space in hard alloys. Can improve the strength, corrosion resistance, and other properties of hard alloys; 
4. Zirconium carbide can be applied to coatings as a high-temperature resistant coating to improve the surface properties of the material; 
5. Modifier for carbon carbon composite functional materials - zirconium carbide (ZrC): Used to modify carbon fibers can significantly improve their strength. Improve the fatigue resistance, wear resistance, and high temperature resistance of carbon fiber. The effect is very significant in the modification of aerospace carbon fiber materials. ZrC zirconium carbide powder material, with the chemical formula ZrC, is a new type of material produced through special process design. The elastic modulus is 35.5 × 103MPa, the resistivity is 57-75/μ Ω· cm, the compressive strength is 1670MPa, the thermal expansion coefficient is 6.7 × 10-6 ℃ (20-1000 ℃), the microhardness is 2930kg/mm-2, the thermal conductivity is 20.52 [W (m · K) -1] (20 ℃), the atomic weight is 103.22, the theoretical carbon content is 11.64%, the melting point is 3540 ℃, the theoretical density is 6.66g/cm3, and the temperature at which strong oxidation begins is 1100-1400 ℃. Insoluble in hydrochloric acid, but soluble in nitric acid. ZrC zirconium carbide powder material is a face centered cubic structure with a lattice constant of 0.46930nm and a space group of Fm3m. The radius ratio of C atoms to Zr atoms is 0.481, which is less than 0.59, forming a simple interstitial phase. Zr atoms form a compact cubic lattice, while C atoms are located in the octahedral interstitial positions of the lattice. 
ZrC zirconium carbide powder material is a key material for the preparation of high-performance wear-resistant materials, high-temperature structural materials, hard alloys, aerospace, atomic energy, textiles, electronics, coatings, and metallurgical automation in high-tech fields. The composite carbide solid solution of 6-membered niobium carbide and 4-molecule zirconium carbide (which we can supply) can replace expensive tantalum carbide and produce high-temperature and wear-resistant CNC cutting tools; A mixture of 4-molecule tantalum carbide and 1-molecule zirconium carbide (which we can customize) has a high melting point and is a good thermal ion emitter; The Zr Ti alloy, Zr-Ti-C-B ceramic material, and C/C - (Zr-Ti-C-B/SiC) composite material produced from zirconium carbide are new materials that can withstand erosion at 3000 ℃, making supersonic flight possible and providing high-end material solutions for the development of supersonic aircraft. ZrC zirconium carbide powder material can be used for infrared detection, electrodes, refractory crucibles, and cathode electron emission materials. Can be used as an abrasive for processing various hard metals, corundum, or glass; It can also produce wear-resistant and corrosion-resistant zirconium carbide crucibles and cutting tools. In addition, it can also be used for wear-resistant protective films, superhard thin film materials, and high brightness electron emission films in the nuclear fuel industry, electronic equipment, and tools. 
Zirconium carbide can be used in the nuclear fuel industry, electronic equipment protective films, superhard thin film materials, and high brightness electron emission films. Due to its low neutron absorption cross section and good radiation resistance, it can be used as an inert matrix material in nuclear reactors, such as nuclear fuel cladding materials; 
8. Low density loose zirconium carbide coating has good thermal stress resistance and insulation performance, and can be used as an insulation material. High density dense zirconium carbide coating has good penetration resistance and can be used as a protective coating. 
Packaging and storage: 
This product is packaged with inert gas and anti-static properties. It should be sealed and stored in a dry and cool environment. It should not be exposed to air for a long time to prevent moisture and aggregation, which may affect its dispersibility and effectiveness.