What are the Applications of the Boron Nitride
- info16151
- Feb 27, 2019
- 2 min read
Applications of the Boron Nitride
1. Metal forming release agent and lubricant for metal drawing.
2. Special electrolysis and resistance materials at high temperature.
3. High-temperature solid lubricants, extrusion anti-wear additives, additives for the production of ceramic composites, refractories and anti-oxidation additives, especially in the case of corrosion resistance of molten metals, thermal reinforcement additives, high-temperature insulation materials.
4. Additives for heat sealing desiccant and plastic resin.
5. Pressed boron nitride products with various shapes can be used for high temperature, high pressure, insulation and heat dissipation parts.
6. Thermal shielding materials in aerospace.
7. Under the participation of catalyst, it can be transformed into cubic boron nitride, such as diamond, by high temperature and high pressure treatment.
8. Structural materials for atomic reactors.
9. The nozzle of aircraft and rocket engine.
10. Insulators for high voltage, high frequency and plasma arc.
11. Packaging materials to prevent neutron radiation.
12. Superhard materials made from boron nitride can be made into high-speed cutting tools and bits for geological exploration and oil drilling.
13. Separating rings for continuous casting steel metallurgically, flow grooves for amorphous iron, strippers for continuous casting aluminum.
14. Do all kinds of evaporation boats, such as capacitor film aluminum plating, picture tube aluminum plating, display aluminum plating and so on.
15. All kinds of fresh aluminum plated packaging bags.
16. All kinds of laser anti-counterfeiting aluminum plating, trademark gilding materials, all kinds of tobacco labels, beer labels, packaging boxes, cigarette packaging boxes aluminum plating and so on.
17. The cosmetics used for lipstick are nontoxic, lubricate and glossy.
Future prospects of boron nitride
Because of the high hardness of iron and steel materials, a lot of heat will be produced during processing. Diamond tools are easy to decompose and react with transition metals at high temperature. C-BN materials have good thermal stability and are not easy to react with iron group metals or alloys. It can be widely used in precision machining and grinding of iron and steel products. In addition to excellent wear resistance, c-BN also has excellent heat resistance. It can also cut heat-resistant steel, ferroalloy, quenched steel and so on at a considerable high cutting temperature. It can also cut high hardness cold rolls, carburized and quenched materials and Si-Al alloy with very serious tool wear. In fact, tools and abrasives made from sintered c-BN crystals have been used in high-speed and precision machining of various cemented carbide materials.
C-BN, as a wide band gap semiconductor material, has high thermal conductivity, high resistivity, high mobility, low dielectric constant, high breakdown electric field, dual doping and good stability. It is called the third generation semiconductor material after Si, Ge and GaAs together with diamond, silicon carbide and GaN.
In optical applications, c-BN thin films have high hardness and high transmittance from ultraviolet (about 200 nm) to far infrared, so they are suitable for surface coating of some optical components, especially for zinc selenide (ZnSe), zinc sulfide (ZnS) and other window materials. In addition, it has good thermal shock resistance and commercial hardness, and is expected to be an ideal window material for high power laser and detector.
For more information, please visit http://www.samaterials.com/
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