Properties and Applications of Boron Nitride
Aug 26,2025
Boron nitride is an inorganic compound with the chemical formula BN. It features a high melting point, exceptional hardness, and excellent thermal conductivity, making it an important wear-resistant material.
In industry, boron nitride is primarily used in applications such as abrasive machining, coating materials, and ceramic manufacturing. Thanks to its exceptional properties—high hardness, high melting point, and excellent corrosion resistance—it’s commonly employed in the production of tools like grinding wheels, cutting tools, and ceramic blades.
1. Mold release agents for metal forming and lubricants for metal drawing.
2. Special electrolyte and resistance materials for high-temperature applications.
3. High-temperature solid lubricants, extrusion anti-wear additives, additives for producing ceramic composite materials, refractory materials, and antioxidant additives—particularly suited for applications involving resistance to molten metal corrosion—as well as thermal enhancement additives and high-temperature-resistant insulating materials.
4. Additives for polymers such as transistor desiccants and plastic resins.
5. Boron nitride products molded into various shapes can be used as high-temperature, high-pressure, insulating, and heat-dissipating components.
6. Thermal shielding materials in aerospace.
7. With the involvement of a catalyst and under high temperature and pressure, it can be transformed into cubic boron nitride, which is as hard as diamond.
8. Structural materials for nuclear reactors.
9. Nozzles of aircraft and rocket engines.
10. Insulators for high-voltage, high-frequency electricity and plasma arcs.
11. Packaging materials designed to shield against neutron radiation.
12. Ultra-hard materials made from boron nitride can be used to create high-speed cutting tools as well as drill bits for geological exploration and oil drilling.
13. Separation rings used in metallurgy for continuous steel casting, amorphous iron flow channels, and mold-release agents for continuous aluminum casting (including various optical glass demolding agents).
14. Manufacturing evaporation boats used for aluminum coating of various capacitor films, picture tubes, and displays, among other applications.
15. Various aluminum-coated packaging bags for freshness preservation, and more.
16. Various laser-etched anti-counterfeiting aluminum-coated materials, gold-stamped trademark materials, diverse cigarette labels, beer labels, packaging boxes, aluminum-coated cigarette packs, and more.
17. A cosmetic filler used in lipsticks, it is non-toxic, provides lubrication, and imparts a glossy finish.
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