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Titanium diboride properties, uses and production technology

wallpapers Industry 2021-03-26
The chemical and physical properties of titanium diboride
This product is a gray hexagonal crystal with a relative density of 4.50 and a melting point of 2900°C. It has high hardness and strength, good thermal shock resistance, low electrical resistance, and it is not easy to be corroded by molten metal. Purpose Powder is used for rocket nozzles, electrical contacts, and high-temperature electrode materials, and can also be used as abrasives.
Uses of titanium diboride
Conductive ceramics, tool ceramics, conductive wear-resistant, and corrosion-resistant coatings, conductive composite materials. Using titanium diboride (TiB2) and boron nitride (BN) to make conductive boron nitride (evaporation boat) is the main component of vacuum aluminum plating equipment. Ceramic cutting tools and their parts. Manufacture of titanium diboride ceramics for wire drawing dies, extrusion dies, sandblasting nozzles, sealing elements, cutting tools, etc.
It is used as the cathode material of aluminum electrolytic cells. Due to the good wettability of TiB2 and metal aluminum liquid, the power consumption of electrolytic aluminum is reduced and the life of the electrolytic cell is extended. It can also be made into PTC heating materials and flexible PTC materials, and it is a strengthening agent for metal materials such as Al, Fe, and Cu. Use as rocket nozzles, electrical contacts, electrode materials, etc.
Production method of titanium diboride
The boron carbide method is also called the carbothermic reduction method. Its 2TiO2+B4C+3=2TiB2+4CO vapor deposition method uses TiCl4 and BCl3 as raw materials. With the participation of H2, the deposition temperature is 800-1000℃, which can produce abrasive grades and Electronic grade product, TiCl4+2BCl3+5H2=TiB2+10HCl.

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