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Titanium diboride powder The hexagonal (AlB2) structure of the crystals is grayish-black. It is very hard and has a melting temperature of 2980degC. Titanium diboride is resistant to oxidation and can reach a temperature of 1000 in the air. It also remains stable in HCl acid and HF. Titanium Diboride is used to produce composite ceramic products. Due to its ability to resist corrosion, titanium diboride may be used for the production of electrolytic cell electrodes and molten metallic crucibles.

Preparation and Use of Titanium Diboride

There are many methods that can be used to prepare titanium diboride. These include the carbothermic method of reduction, the self-propagating method at high temperature, the mechanochemical method, and ball milling.
1.Carbothermal Reduction Method
When titanium and boron oxids are used as raw materials with carbon black as the reducing agent in a high-temperature tube carbon furnace for a long period of time, the purity is determined by the powder of the original raw material. This process is widely used in industrial production. The powder obtained from this process has large particles and is high in impurities.

Self-propagating High-Temperature Synthesis (SHS)
In general, this method is to compress the mixture of raw materials that will be reacted and ignite one end. The reaction releases a huge amount of heat, which causes adjacent materials to react. Eventually, a combustion-wave spreading at speed v forms. As the combustion waves advance, the raw materials are transformed into the finished product. The self-propagating, high-temperature method can be combined with special technical means to produce a dense material of titanium diboride.

3. Mechanical reaction method (MR).
The powder reactant is placed into a high-energy mill and is deformed under the constant squeezing of the ball. Ball milling is a violent process that converts mechanical energy into chemical energy. Comparing the two first methods of preparing titanium dioxide, the mechanochemical reactions method is more cost-effective, has a wide range of raw material sources, and produces titanium diboride at a low temperature.

The Application of Titanium Diboride

Titanium diboride can be mixed with ceramic polymers and other metals to form new materials that have commercial applications.

1.Titanium boride can serve as an additive for grain refinement or particle strengthening. It can be used to enhance the mechanical and physic properties of materials based on aluminum, copper and titanium-aluminum alloys.

It is possible to combine titanium diboride and non-oxide ceramics, such as silicon carbide, aluminum nitride or boron carbide. Or, it can be combined with oxide ceramics, such as alumina.

PTC head-type materials and PTC heating ceramics can be created by mixing titanium diboride powder with high performance resin. They have many advantages, such as safety, energy saving, reliability and ease of processing and molding. These include electric irons (and blankets), electric ovens (and air conditioners), and electric blankets. This is a key high-tech to upgrade household appliances like hot-air heaters.

It has excellent electrical conductivity, and is resistant to corrosion caused by molten metallic. It is used for evaporators as well as aluminum electrolytic cells cathodes, electrodes, contact heads, and molten-metal crucibles.

5. The use of titanium dioxide as the cathode material for the aluminum electrolytic battery can reduce its power consumption and extend the life span of the cell.

6. Titanium diboride may be used in the manufacture of ceramic tools and molds. It is used for the manufacture of finishing tools, wire-drawing dies extrusions dies, sandblasting nodes, sealing components etc.

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