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What is titanium boreide?
Titanium boride is the most stable of all the compounds containing boron or titanium. It has a C32-structure and is combined as valence bonds. It is a hexagonal metalloid. The crystal structure is composed of a and C. a is 0.302 nm. The crystal structure is a network of covalently-bonded boron and titanium atoms. An extra electron creates a large p-bond. This graphite like layered structure between boron electrons and Ti outer layers determines TiB2’s good conductivity, metallic luster, and hardness.
Castables and the influence of the titanium boride amount
Carbon in the injectable material can improve corrosion resistance, thermal shock stability, and structural spalling. Castables will suffer from carbon oxidation. TiB2 is widely used in ceramic materials, corundum, and other materials. It has shown good results. However, it has not been studied as much in castables. The effect of TiB2 additive on the properties iron trough castables was studied for this reason.
ASC iron-ditch castings were prepared to increase the oxidation resistance using brown corundum powder fused with SiC particles or fine powder. Other raw materials used included aa-Al2O3 Powder, Secar71 powder, silicon powder and spherical pitched + silicon. The white powder of corundum was substituted with titanium boride, in different mass fractions, of 0, 0.5%, 1%, 1.5%, and 2.0%, respectively. This was done to study the effect of TiB2 added on the castable’s properties. The results show with an increase in the amount of TiB2, the linear change after 3 hours at 1000 or 1500 first decreases then increases. Bulk density first increases then decreases. Appearance porosity decreases then increases. The flexural resistance and oxidation resistivity increase and decrease in order. Addition of TiB2 at 1% (w) can give the highest high-temperature flexural resistance. Addition of 1% (w), TiB2, can give a sample a more comprehensive index.
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