Boron Carbide
Boron Carbide
Boron carbide (B4C) is a ceramic material that consists of boron and carbon atoms in a crystalline structure. It is one of the hardest materials known, ranking third after diamond and cubic boron nitride in terms of hardness. Due to its unique properties, boron carbide has numerous applications in various industries.
- Density: 2.52 g/cm³
- Hardness: 9.3 on the Mohs scale
- Melting point: 2,450°C
- Thermal conductivity: 30-60 W/mK
- Coefficient of thermal expansion: 5.3 x 10-6/K
Introduction
Boron carbide’s hardness and wear resistance are its most notable properties. It has a Mohs hardness of 9.3, making it one of the hardest materials known to man. For comparison, diamond has a Mohs hardness of 10, but boron carbide is lighter and less brittle, making it easier to work with.
Boron carbide also has a high melting point, around 2,450°C, and is highly resistant to chemical attack. It has a low coefficient of thermal expansion, meaning it doesn’t expand or contract much with changes in temperature. This makes it useful in high-temperature applications where dimensional stability is important.
One of the most significant advantages of boron carbide is its exceptional hardness, which makes it suitable for use in ballistic armor and cutting tools. It is also lightweight and has a low density, making it an excellent material for aerospace applications. Boron carbide is highly resistant to wear and corrosion, which makes it an ideal material for wear-resistant coatings and components.
Advantages
High hardness
Boron carbide is one of the hardest materials, with a Mohs hardness of 9.3, making it ideal for abrasive applications.
High melting point
It has a high melting point of 2450°C, making it ideal for use in high-temperature applications.
Low density
It is one of the lightest ceramic materials, making it ideal for applications where weight is a concern.
Chemical resistance
Boron carbide is resistant to chemical corrosion and erosion, making it ideal for use in harsh environments.
Parameters
| Boron carbide chemical composition and grain size analysis table | |||||
| Model/Grain Size |
Basic Particle Size(micron) |
Total Boron Content (B%) |
Total Carbon Content (C%) |
Ferric Oxide (Fe203%) |
Boron+Carbon (B+C%) |
| F60 | 300-250 | 78-81 | 17-22 | 0.2-0.4 | 97-99 |
| F80 | 212-180 | 78-81 | 17-22 | 0.2-0.4 | 97-99 |
| F100 | 150-125 | 78-81 | 17-22 | 0.2-0.4 | 97-99 |
| F120 | 125-106 | 78-80 | 17-22 | 0.2-0.4 | 96-98 |
| F150 | 106-75 | 78-80 | 17-22 | 0.2-0.4 | 96-98 |
| F180 | 75-63 | 78-80 | 17-22 | 0.2-0.4 | 96-98 |
| F230 | 53.0±3.0um | 77-80 | 17-22 | 0.3-0.5 | 96-97 |
| F240 | 44.5±2.0um | 77-80 | 17-22 | 0.3-0.5 | 96-97 |
| F280 | 36.5±1.5um | n-80 | 17-22 | 0.3-0.5 | 96-97 |
| F320 | 29.2±1.5um | 76-79 | 17-21 | 0.3-0.6 | 95-97 |
| F360 | 22.8±1.5um | 76-79 | 17-21 | 0.3-0.6 | 95-97 |
| F400 | 17.3±1.0um | 75-79 | 17-21 | 0.4-0.8 | 94-96 |
| F500 | 12.8±1.0um | 76-79 | 18-22 | 0.3-0.7 | 94-97 |
| F600 | 9.3±1.0um | 74-78 | 17-21 | 0.4-0.9 | 92-94 |
| F800 | 6.5±1.0um | 74-78 | 17-21 | 0.4-0.9 | 92-94 |
| F1000 | 4.5±0.8um | 75-78 | 18-22 | 0.1-0.8 | 90-94 |
| F1200 | 3.0±0.5um | 75-78 | 18-22 | 0.1-0.8 | 90-94 |
| F1500 | 2.0±0.4um | 75-78 | 18-22 | 0.1-0.8 | 90-94 |
| F2000 | 1.2±0.3um | 75-78 | 18-22 | 0.1-0.8 | 90-94 |
| -325 | -45um | 75-80 | 17-21 | 0.1-0.5 | 95-97 |
Applications
Abrasives
It is widely used as an abrasive material for cutting, grinding, and polishing.
Armor
Boron carbide is used in body armor and armored vehicles due to its exceptional hardness and toughness.
Nuclear reactors
It is used as a neutron absorber in nuclear reactors due to its high neutron absorption cross-section.
Nozzles
Boron carbide is used in abrasive water jet nozzles and sandblasting nozzles due to its high wear resistance.
Semiconductor industry
It is used in the production of semiconductor components due to its high thermal conductivity and low electrical resistivity.
Packaging & Shipping
We can offer 1MT/25Kg Woven plastic bags, and 25Kg Paper bags.
Our Boron Carbide is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Contact Us
Get a Quote
Email Address
sales@superior-abrasives.com
+86-18638638803
Address
No.68 Zhengtong Road, Zhengzhou, Henan, China