We unleash your business potential by maximize the business innovation.
Send EmailBoron Nitride, Elbor, Borazon, Hexagonal Boron Nitride (h-BN), Cubic Boron Nitride (c-BN), Wurtzite Boron Nitride (w-BN), Boron Mononitride, BN Powder, 10043-11-5
Boron Nitride (BN) is a compound consisting of boron and nitrogen atoms, known for its exceptional thermal and chemical stability. Its hexagonal form (h-BN) resembles graphite and is widely used as a lubricant. The cubic form (c-BN) is the second hardest material after diamond, making it ideal for abrasive applications.
Properties
-
Chemical Formula: BN
-
CAS Number: 10043-11-5
-
Melting Point: ~2973°C
-
Density: 2.1 g/cm³ (h-BN), 3.48 g/cm³ (c-BN)
-
Electrical Properties: Insulator (h-BN), Semiconductor (c-BN)
Applications
-
Lubricants: Alternative to graphite in high-temperature machinery.
-
Cutting Tools: c-BN is used as an abrasive in metalworking and cutting inserts.
-
Electronics: Preferred as an insulating material in nanoelectronics and coatings.
-
Ceramics & Metal Casting: Protective coating due to high thermal resistance.
Synonyms
Elbor, Borazon, Hexagonal Boron Nitride (h-BN), Cubic Boron Nitride (c-BN), Wurtzite Boron Nitride (w-BN), Boron Mononitride, Boron Nitride Ceramic, BN Powder
Boron Nitride (BN) – Sectoral Preferences and Alternatives
| Sector / Application | BN Preference Reason | Alternative Materials | Why BN is Preferred |
|---|---|---|---|
| Lubricants (h-BN) | High-temperature oxidation resistance, chemically inert | Graphite, MoS₂ (Molybdenum Disulfide) | Graphite oxidizes easily; h-BN remains stable and is electrically insulating |
| Cutting Tools (c-BN) | Second hardest material after diamond, excellent abrasive | Diamond, Carbides (WC, TiC) | Diamond reacts with ferrous metals; c-BN is more stable with ferrous alloys |
| Electronics / Nanoelectronics (h-BN) | Electrical insulator, high thermal conductivity | Silicon Oxide (SiO₂), Aluminum Oxide (Al₂O₃) | h-BN offers thinner layers and superior thermal conductivity |
| Ceramics & Metal Casting | High thermal resistance, chemical inertness | Alumina, Zirconia | BN coatings prevent metal adhesion and protect surfaces during casting |
| Abrasives (c-BN) | Extreme hardness, long-lasting abrasive | Diamond, Corundum (Al₂O₃) | c-BN is more durable than diamond when machining ferrous metals |
| Coating Materials | Applicable as thin films, chemically inert | SiC, TiN | BN coatings provide electrical insulation and thermal stability |
Summary
-
h-BN → Preferred over graphite for lubrication due to oxidation resistance and electrical insulation.
-
c-BN → Chosen over diamond in ferrous metal machining because of chemical stability.
-
w-BN → Specialized high-pressure applications, comparable hardness to c-BN.
