Zirconium carbide product details
Basic information
Zirconium carbide is an inorganic substance that belongs to the non-metallic carbide with the chemical formula ZrC
Structure and characteristics of zirconium carbide:
Zirconium carbide forms a simple gap phase, Zr atoms form a compact cubic lattice, C atoms are in the octahedral gap position of the lattice, Zr and C atoms can each form a face-centric cubic structure, in an octahedral structure, each zirconium atom and carbon atom is surrounded by six other kinds of atoms of sub-neighbors. ZrC has a wide homogeneous region, in the homogeneous region of the carbon content will change, so the true composition should be by the formula ZrCx to represent its larger non-stoichiometric composition, here x is the atomic ratio of carbon and zirconium, in the range x = 0.5 ~ 1 carbide crystal structure unchanged.
Carbon deficiency is caused by the vacancy of carbon atoms in the carbon sub-grid, and the vacancy concentration regularly affects the properties related to Zr-C bond strength, such as condensation energy, melting point, elastic constant, hardness and high temperature plastic behavior, as well as defect-related migration properties, such as thermal, electrical conductivity and diffusion behavior.
The preparation of zirconium carbide has direct synthesis method, carbon thermal reduction method, sol gel method, self-spreading combustion synthesis method, plasma chemical vapor phase synthesis method, mechanical alloy method and low temperature synthesis method, etc. The industry is generally prepared by carbon reduction ZrO2, and then molded and sintered into ceramics. Zirconium carbide powder has high temperature resistance, high hardness, good thermal conductivity, good chemical stability and other properties. It is soluble in nitric acid, hot concentrated sulfuric acid, hydrofluoric acid and aqua regia, and is easily soluble in molten caustic soda.
Product description
Zirconium carbide is a key material in high-tech fields such as high-performance wear-resistant materials, high-temperature structural materials, cemented carbide, aerospace, atomic energy, textiles, electronics, coatings and metallurgical automation.
(1) It can be used as a heat-proof material for industrial aircraft and propulsion systems, such as the wing leading edge of the space shuttle, hypersonic combustion ramjet, etc.;
(2) Zirconium carbide can be used as an abrasive for the processing of various hard metals, corundum or glass, and can also prepare wear-resistant, corrosion-resistant zirconium carbide crucibles and tools;
(3) Zirconium carbide can be applied to coatings as high-temperature coatings to improve the surface properties of materials;
(4) Zirconium carbide can be used in the nuclear fuel industry, electronic equipment protective films, superhard film materials and high-brightness electron emission films. Because of 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 coating materials;
(5) Zirconium carbide can be used to modify carbon fiber, greatly improve the strength and fatigue resistance of carbon fiber, enhance wear resistance and high temperature resistance, and apply aerospace carbon fiber material modification;
(6) The low-density loose zirconium carbide coating has good thermal stress resistance and insulation performance, and can be used as an insulating material, and the high-density dense zirconium carbide coating has good permeability resistance and can be used as a protective coating.
Series product parameters
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The product name
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Zirconium carbide
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density
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6.9 g/cm3
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Coefficient of thermal expansion
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6.7×10-6C-1
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molecular formula
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ZrC
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melting point
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3540℃
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Mohs hardness
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8~9
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Appearance form
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Black powder
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boiling point
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5100℃
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microhardness
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2700kg/mm2
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CAS#
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12070-14-3
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Resistivity
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4.2×10-5Ω·cm
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-
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-
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molecular weight
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103.2347
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electrical conductivity
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2.3×104S/cm
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-
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-
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The Forsman company plant produces a wide range of ultra-high temperature ceramic powders in-house, of which zirconium carbide is one of them. At present, the factory can produce products with different particle sizes such as nanometer level, sub-micron level and micro level. The products that have been industrially produced are 0.5μm, 0.8μm, 1μm, 1.5μm, 2μm, 45μm, all of which can be provided in tonnage and can accept other particle size customization by customers. The standard packaging specifications are 2kg, 25kg, and the packaging specifications can be customized according to the customer's feeding quantity.
Further reading
The use of carbides: transition metal carbides are almost all kinds of chemically corroded substances at room temperature, with high hardness, high melting point, high thermal stability and high mechanical stability. Some also have electrical and magnetic properties similar to those of primary metals, making them widely used in various fields. Its high-temperature characteristics can be applied to the field of high-temperature parts manufacturing, friction-resistant characteristics can be applied to mechanical cutting, mineral mining and other fields, chemical corrosion resistance can be applied to nuclear reactors and other fields. In addition, transition metal carbides are a very promising non-oxide high-temperature structural material, electronic material and catalytic new material.
Related papers
[1] ZHANG Yuwei. Study on structure characterization and electrical properties of zirconium carbide[D].Wuhan University of Technology,2012.
[2] Wang Xueying. Preparation and related mechanism of ultra-high temperature zirconium carbide precursor and nanopowder[D].Jingdezhen Ceramic University, 2022.
[3] Jia Qi,Xiong Lun,Zhang Junran. Study on the state equation and structural phase change of zirconium carbide under high pressure[J].Journal of Capital Normal University (Natural Science Edition), 2021,42(04):33-39.
Forsman's product features and technical advantages
(1) The appearance is gray and black gray powder, evenly distributed; (2) XRD detection is pure phase; Its low oxygen content and particle size can be customized (control D10 D50 D90 distribution range); (3) After testing, its combustion is stable and its thermal efficiency is high; (4) Its fluidity is better, the quality of spraying is good, it is easy to mold, and it does not clog the spinner;
Recommended product 1: Zirconium carbide 4004001 particle size 1μm
Product test report: XRD spectrum, SEM scanning electron microscopy, laser particle size map
Recommended product 2: Zirconium carbide 4004016 particle size 0.8μm
Product purchase Q&A
Q: We use it in the lab, do you have small packages?
A: Yes, for laboratory needs, we generally have 100g/250g/500g/1kg and other packaging specifications to meet the needs of laboratory research users.
Q: I see that some companies offer 99.9% of the products, why don't you have such high-purity products?
A: The purity of the product is determined by many factors such as raw materials, production processes, testing methods and other aspects of the product. Different detection methods for the same material, may vary greatly in purity. In addition to purity concerns, you need to understand what the purity test method is to determine the reliability of this purity. It is quite possible that the actual purity of a 98% purity product and a product of 99.9% purity is much the same.
Q: I want to use sprayed zirconium carbide powder, do you have one?
A: Spraying powder also has a lot of differences, because different spraying methods, may be different for the particle size requirements of the powder, if you have a clear particle size requirements, we can customize, if there is no clear particle size requirements, you can tell us what spraying method, we help you choose several to try. If the demand is large, we can also granulate.
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