titanium diboride (TiB2)
Cermet products have a higher acceptance rate than titanium (TiC), and tungsten (WC). They can be used at high temperatures, and in very corrosive environments.
What are the properties of titanium diboride in structural and functional materials?
1. It is a structural material. Because of its high strength, hardness, and durability, titanium boride is a good choice for making tools. You can add it to other composite materials.
2. Functional materials. Its resistance is comparable to pure iron’s, making it very practical for use in functional materials. Because of its electrical characteristics, titanium boride can be transformed into flexible PTC material.
There are many methods to produce titanium diboride, including the mechanochemical method, carbothermal method, self propagating high temperature and synth method, mechanochemical method, mechanochemical method, vapor reduction method, ball grinding method, etc.
Carbothermic method of reduction
The raw materials used to synthesize titanium diboride powder are titanium oxide and boron dioxides. Carbon black is also used as a reducing agent. Long-term high temperature carbon reduction treatment in carbon tube furnaces uses carbon black. This is an industrial process. It has the disadvantage of having a very large particle size, and high impurity.
SHS is self-propagating at high temperatures.
This is used to melt the reactant mixture into a block and ignite one end to spark the reaction. Due to the enormous heat generated by the reaction, the reactions of the other materials cause them to react and a flame-like phenomenon is produced. As the combustion wave moves forward, the mixture of raw materials is converted into final products. Because of the high product purity due to self-purification by the self propagating high-temperature synthesizing process, it is simple to make further use of the obtained powder. External energy consumption is also low. Combining other technical means can result in dense titanium diboride being prepared directly.
Method for Mechanochemical Reactions (MR)
Reactant powder is put in high-energy ballmills. This causes the powder to be repeatedly crushed by the pressure of the milling ball. Through the violent friction and collision with the ball milling medium, the mechanical energy can be transformed into chemical energy. The reactants are synthesized by the reaction of these reactions. Mechanochemical reactions offer advantages over other methods for preparing titanium diboride. They have a lower synthesis temperature and a wider range of raw materials.
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