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An Ultra-high Temperature Structural Ceramic Material: Zirconium Diboride Ceramics

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What exactly is zirconium disboride?

Zirconium bore is chemical substance with molecular formula ZrB2. Nature gray hard crystal. The three main components of zirconium Boride are zirconium monoboride (zirconium diboride), zirconium trimoride (zirconium triboride) and zirconium triporide. The stability of zirconium boride in wide temperatures is limited to the diboride. The main component of industrial production is zirconium boride. Zirconium dioxide is a hexagonal or gray crystal, powder, or crystal with a relative density of 5.8. The melting point for zirconium diboride at 3040°C is also 3040°C. Very high resistance to temperature, excellent strength at both room and high temperatures. High resistance to thermal shock, good resistance to high temperatures, and anti-oxidation. About 3000degC is the melting point. You can add metallic luster.

Zirconium Diboride Pulverization

ZrB2 powder can be prepared mainly using high-oxide or zirconium for boronization. Traditional synthesis involves the use of a high-temperature induction furnace, resistance furnace to achieve oxide carbothermal reducibility. While this is a straightforward process, it is not as efficient. Also, at around 1800°C, the quality of synthetic powder is less pure and the particle sizes are larger. , Poor sintering activity. Methods such as carbothermal reduction and high-temperature auto-propagation methods, mechanical alloying methods, ceramic precursor cracking techniques, liquid phase methods, etc. Nowadays, they are mainly used.

Zirconium Diboride Ceramic Materials

Zirconium Diboride Ceramics can be used for high-temperature ceramics, composite materials, electrode materials, and nuclear control materials. They are highly valued because they have a high melting point, hardness, high electrical and thermal conductivity, strong neutron control capability, and good heat conductivity. These include turbine blades, and magnet fluid power generation electrodes used in aviation. Additionally, it is more conductive than other ceramic materials. It can also be used in wire cutting to create complex shapes.


ZrB2 ceramics make excellent special refractory material, and can be used for high-temperature thermocouple protective sleeves, casting moulds, metallurgical crucibles, and other purposes. These ceramics aren’t very conductive when they are used as thermocouple protective sleeves. For accurate temperature measurement, the thermocouple protection sleeves must be used in conjunction with an alumina inner shirt. You can use the thermowell for extended periods in brass and molten metal melt. ZrB2 ceramics may also be used to protect refractory materials.

Materials for electrode

ZrB2’s low resistance and electronic conduction conductive mechanism make it suitable for electrode materials and electric shock materials. It can also be used to create metal thermocouple electrodes or high-temperature heating elements. A sleeve-type thermocouple was developed by researchers in 1994. It is based on ZrB2 paired with graphite. The material can operate in an oxidizing environment at 12001600degC, as demonstrated by experiments. It has a relatively high value, reaching 70mV at 1600degC. Higher rates of thermoelectric potential are available. This can help in measuring continuous temperatures in situations where other thermocouples or radiation thermometers may not be suitable. It makes a great thermocouple.

(aka. Technology Co. Ltd. (aka. High purity, small particles size and low impurity are the hallmarks of the Zirconium Diboride Powder that our company produces. If you need a lower purity, please call us .

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