By Gwen | 15 June 2023 | 0 Comments
The preparation process of titanium diboride
What is Titanium diboride?
Titanium diboride (TiB2) is made of titanium and boron. It's typically used for the preparation of composite ceramics. Due to its resistance to molten metal corrosion, it can create electrodes and crucibles made of molten metal to electrolytic cell electrodes.
Titanium diboride has a black (or grey-black) and is ranked sixth in the top ten minerals with the highest melting point worldwide. The temperature at which anti-oxidation occurs in the air can be as high as 1100degC. As a brand-new ceramic, the material has outstanding mechanical and chemical characteristics. Alongside the high melting point as well as the hardness being very high, as is it has high chemical stability. Conductivity in electrical and thermal as well as physical properties, even in hot temperatures exceptionally excellent.
Titanium diboride (TiB2) is made of titanium and boron. It's typically used for the preparation of composite ceramics. Due to its resistance to molten metal corrosion, it can create electrodes and crucibles made of molten metal to electrolytic cell electrodes.
Titanium diboride has a black (or grey-black) and is ranked sixth in the top ten minerals with the highest melting point worldwide. The temperature at which anti-oxidation occurs in the air can be as high as 1100degC. As a brand-new ceramic, the material has outstanding mechanical and chemical characteristics. Alongside the high melting point as well as the hardness being very high, as is it has high chemical stability. Conductivity in electrical and thermal as well as physical properties, even in hot temperatures exceptionally excellent.
Properties of titanium diboride
Titanium diboride has a C32-type structure, combined with its valence bond, and belongs to the metalloid compound of the hexagonal crystal system. In the crystal structure, boron and titanium atomic planes appear alternately to form a two-dimensional network structure, in which B is covalently bonded with the other three B, and the extra electron forms a large π bond. This graphite-like boron atomic layer structure and Ti outer electrons determine that TiB2 has good electrical conductivity and metallic luster, and the Ti-B bond between the boron atomic face and the titanium atomic face determines the high hardness of this material and brittle characteristics.
The preparation process of titanium diboride:
1. Direct synthesis method
Reaction formula: Ti+2B=TiB2
Put T powder and B powder in a high-temperature reactor to combine to form titanium diboride directly. The reaction temperature of this method is above 2000°C, the price of raw materials is high, the process is difficult to control, the reaction is incomplete, the purity of the generated TiB2 is low, and other compounds such as TiB and Ti2B are easy to form.
2. Boron thermal method
Reaction formula: TiO2+4B=TiB2+B2O2
The experiment used TiO2 (purity higher than 99%, anatase structure, particle size 0.2-0.3μm) and non-product (92%, particle size 0.2-0.3μm) as raw materials. The incorporation ratio in the ball mill is Ti: B=1:4, the weight ratio of balls to powder is 40:1, and the ball milling process is completed under vacuum. The reaction temperature does not exceed 1100°C.
3. Molten electrolysis method
Titanium oxides, alkali (or alkaline earth) metal borates, and fluorides generate titanium diboride under molten electrolysis conditions.
4. Assisted immersion metal method
Reaction formula: Ti+2B+ Al=TiB2+AI (or Cu, Sn, etc.)
5. Carbon thermal method
(1) Carbothermal reduction method
Reaction formula: 2TiO2+5C+ B2O3=2TiB2+ 5CO↑
(2) Boron carbide method
Reaction formula: 2TiO2+3C+B4C=2TiB2+ 4CO↑
Or 2TiO2+C+B4C=2TiB2+2CO2↑
6. Self-propagating combustion method
Reaction formula: TiO2+ 5Mg+ B2O3=TiB2+5MgO
TiB2+MgO+2HNO3= TiB2+Mg(NO3)2+H2O
7. Vapor deposition method
Reaction formula: TiCl4+ 2BCI3+ 5H2=TiB2+10HCI↑
8. Sol-gel method
Titanium diboride can also be prepared by sol-gel method using inorganic salts of Ti and B as raw materials.
How to buy Titanium diboride?
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality Titanium diboride powder, please feel free to contact us and send an inquiry.
The preparation process of titanium diboride:
1. Direct synthesis method
Reaction formula: Ti+2B=TiB2
Put T powder and B powder in a high-temperature reactor to combine to form titanium diboride directly. The reaction temperature of this method is above 2000°C, the price of raw materials is high, the process is difficult to control, the reaction is incomplete, the purity of the generated TiB2 is low, and other compounds such as TiB and Ti2B are easy to form.
2. Boron thermal method
Reaction formula: TiO2+4B=TiB2+B2O2
The experiment used TiO2 (purity higher than 99%, anatase structure, particle size 0.2-0.3μm) and non-product (92%, particle size 0.2-0.3μm) as raw materials. The incorporation ratio in the ball mill is Ti: B=1:4, the weight ratio of balls to powder is 40:1, and the ball milling process is completed under vacuum. The reaction temperature does not exceed 1100°C.
3. Molten electrolysis method
Titanium oxides, alkali (or alkaline earth) metal borates, and fluorides generate titanium diboride under molten electrolysis conditions.
4. Assisted immersion metal method
Reaction formula: Ti+2B+ Al=TiB2+AI (or Cu, Sn, etc.)
5. Carbon thermal method
(1) Carbothermal reduction method
Reaction formula: 2TiO2+5C+ B2O3=2TiB2+ 5CO↑
(2) Boron carbide method
Reaction formula: 2TiO2+3C+B4C=2TiB2+ 4CO↑
Or 2TiO2+C+B4C=2TiB2+2CO2↑
6. Self-propagating combustion method
Reaction formula: TiO2+ 5Mg+ B2O3=TiB2+5MgO
TiB2+MgO+2HNO3= TiB2+Mg(NO3)2+H2O
7. Vapor deposition method
Reaction formula: TiCl4+ 2BCI3+ 5H2=TiB2+10HCI↑
8. Sol-gel method
Titanium diboride can also be prepared by sol-gel method using inorganic salts of Ti and B as raw materials.
How to buy Titanium diboride?
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality Titanium diboride powder, please feel free to contact us and send an inquiry.
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