Overview of CBN Cubic Boron Nitride powder
Boron Carbide (B4C) is a ceramic compound renowned for its exceptional hardness and wear resistance, ranking just below diamond and cubic boron nitride in terms of hardness. Composed of boron and carbon atoms arranged in a covalently bonded crystal structure, it exhibits unique physical and chemical properties that make it highly valuable in various industrial and military applications. Boron carbide’s high melting point, low density, neutron-absorbing capability, and extreme toughness further distinguish it among advanced materials.
Features of CBN Cubic Boron Nitride powder
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Extreme Hardness: With a Mohs hardness of around 9.3 to 9.5, boron carbide is one of the hardest materials known, surpassed only by diamond and cubic boron nitride.
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Lightweight: Despite its hardness, boron carbide has a relatively low density of about 2.52 g/cm³, which makes it an attractive material for lightweight armor systems.
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Thermal Stability: It possesses excellent thermal stability, maintaining its properties up to temperatures around 2,000°C, making it suitable for high-temperature applications.
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Neutron Absorption: Boron carbide is a potent neutron absorber due to its boron content, making it ideal for nuclear shielding and control rods.
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Chemical Resistance: Resistant to most acids and alkalis, except for hydrofluoric acid and hot concentrated alkaline solutions, ensuring durability in corrosive environments.
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Abrasion Resistance: Its exceptional wear resistance makes it suitable for applications where friction and abrasion are prevalent, such as sandblasting nozzles.
(CBN Cubic Boron Nitride powder)
Parameters of CBN Cubic Boron Nitride powder
The CBN Cubic Boron Nitride (CBN) powder has several parameters that affect its performance and properties, including:
1. Volume density: The volume density of CBN powder is an important parameter that affects the particle size, particle shape, and distribution in a matrix.
2. Surface area: The surface area of CBN powder is also affected by its volume density, as it determines the number of defects per unit mass and the strength of bonds between particles.
3. Microstructure: The microstructure of CBN powder can affect its mechanical properties, such as hardness, strength, and wear resistance.
4. Chemical composition: The chemical composition of CBN powder can affect its physical and chemical properties, such as melting point, boiling point, and solubility in differentmedia.
5. thermal stability: The thermal stability of CBN powder is influenced by its volume density, surface area, and chemical composition.
6. Application conditions: The application conditions, such as temperature, pressure, and humidity, can affect the properties and performance of CBN powder.
It’s recommended to use various techniques, such as particleSize determination, X-ray diffraction analysis, and scanning electron microscopy (SEM), to determine the optimal CBN powder parameters for a particular application.
(CBN Cubic Boron Nitride powder)
Applications of CBN Cubic Boron Nitride powder
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Armor Systems: Widely used in body armor, vehicle armor, and bulletproof vests due to its lightweight and superior protection capabilities.
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Nuclear Applications: As control rods and shielding material in nuclear reactors because of its neutron absorbing properties.
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Abrasive and Cutting Tools: In grinding wheels, polishing powders, and cutting tools due to its hardness and wear resistance.
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Industrial Nozzles: For sandblasting and water jet cutting applications where resistance to wear and erosion is critical.
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Military and Defense: As a component in armor-piercing projectiles and defensive systems.
Company Profile
MyCarbides is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality carbides and relative products.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality carbide materials and relative products, please feel free to contact us or click on the needed products to send an inquiry.
Payment Methods
L/C, T/T, Western Union, Paypal, Credit Card etc.
Shipment
It could be shipped by sea, by air, or by reveal ASAP as soon as repayment receipt.
FAQs of CBN Cubic Boron Nitride powder
Q: Is CBN Cubic Boron Nitride powder toxic?
A: Pure boron carbide is generally considered safe to handle. However, during machining or grinding, dust inhalation can be a concern, requiring proper ventilation and protective equipment.
Q: Can CBN Cubic Boron Nitride powder be machined?
A: Due to its extreme hardness, machining boron carbide is difficult and requires specialized techniques and diamond tooling. Grinding, EDM (Electrical Discharge Machining), or laser cutting are common methods.
Q: How does CBN Cubic Boron Nitride powder compare to tungsten carbide in terms of hardness?
A: CBN Cubic Boron Nitride powder is harder than tungsten carbide, with a Mohs hardness of around 9.3 to 9.5 compared to tungsten carbide’s 8.5 to 9.
Q: What is the primary use of CBN Cubic Boron Nitride powder in the military sector?
A: CBN Cubic Boron Nitride powder is primarily used in the military for body armor, armored vehicles, and as a component in armor-piercing ammunition due to its combination of hardness, light weight, and ballistic performance.
Q: Can CBN Cubic Boron Nitride powder be used in high-temperature applications?
A: Yes, CBN Cubic Boron Nitride powder maintains its structural integrity and properties up to very high temperatures, making it suitable for use in extreme heat environments such as furnace linings and high-temperature ceramics.
(CBN Cubic Boron Nitride powder)
