Zirconium Boride

Zirconium Boride powder is a kind of gray to black powder with the chemical formula of ZrB₂. It has the physical and chemical properties of high melting point and high hardness, good chemical stability, excellent electrical conductivity and thermal conductivity, and low density, etc. It can be prepared by the carbon-thermal reduction method, etc., and it has important applications in the fields of ultra-high-temperature ceramics, cutting tools, electronic materials and ceramic-based composite materials.

Properties

Chemical formula: ZrB₂

Molecular weight: 112.84

CAS No.: 12045-64-6

Appearance: usually gray to black powder

High melting point and high hardness: Zirconium boride has a very high melting point of about 3245℃, which makes it still maintain good stability under high temperature environment and has excellent high temperature resistance. At the same time, its hardness is also very high, second only to diamond and cubic boron nitride, and can be used to manufacture super-hard materials and wear-resistant parts.

Good chemical stability: at room temperature, zirconium boride has good stability to most chemical substances, it is not easily corroded by acids, alkalis and other common chemical reagents, and only reacts with a few substances such as strong oxidizers at high temperatures, and this stability makes it possible to use it in a variety of harsh chemical environments.

Excellent electrical and thermal conductivity: the presence of movable electrons in its crystal structure gives it good electrical conductivity, which can meet the needs of some special electrical applications. In addition, it also has good thermal conductivity, which is conducive to the rapid transfer of heat and can be used to manufacture high-temperature heat dissipation materials and thermal management components.

Low density: Zirconium boride has a relatively low density of about 6.09 g/cm³, which gives it an advantage in applications that require material weight, such as aerospace and automotive, where it can reduce the weight of components while maintaining performance.

Applications

Ultra-high-temperature ceramic materials: Due to its high melting point, high hardness and good chemical stability, zirconium boride is an important component in the manufacture of ultra-high-temperature ceramic materials, which can be used in the thermal protection system of aerospace vehicles, engine components, etc. It is able to withstand extreme high-temperature environments and ensure the safe operation of the vehicle.

Cutting tools and wear-resistant parts: the high hardness of zirconium boride makes it an ideal material for manufacturing cutting tools, drills, grinding tools and other wear-resistant parts, which can significantly improve the service life and processing efficiency of tools and parts, and it has a wide range of applications in the fields of machining, mining and so on.

Electronic materials: its good electrical conductivity and thermal conductivity so that it can be used in the manufacture of electronic devices in the electrode, wiring, heat sinks, etc., can improve the performance and reliability of electronic components, reduce energy consumption, in the field of electronic information, communications and other areas have important application prospects.

Ceramic matrix composites: zirconium boride can be added to the ceramic matrix as a reinforcing phase to prepare high-performance ceramic matrix composites, improve the mechanical properties of ceramics, thermal properties and electrical properties, can be used for the manufacture of ceramic engines, ceramic armor and other high-performance ceramic products.