Overview of Hexagonal Boron Nitride BN Powder
Hexagonal Boron Nitride BN Powder, also known as hexagonal boron nitride powder, is an inorganic compound composed of boron and nitrogen elements. Its chemical formula is BN, with a layered crystal structure similar to graphite, where boron and nitrogen atoms alternate in a hexagonal lattice. The Hexagon Boron Nitride BN Powder is renowned for its unique physical and chemical properties, including high hardness, high melting point, excellent thermal and chemical stability. This powder can maintain stability in extreme environments and has excellent thermal conductivity and low coefficient of thermal expansion. Due to its unique structure and properties, the Hexagon Boron Nitride BN Powder has potential application value in multiple fields.
Features of Hexagonal Boron Nitride BN Powder
Unique crystal structure: The Hexagon Boron Nitride BN Powder has a unique hexagonal layered crystal structure, which gives it excellent physical and chemical properties.
High hardness and strength: The hardness of BN powder is second only to diamond and cubic boron nitride, and it also has high strength, making it an ideal wear-resistant material in many industrial applications.
Excellent thermal stability: BN powder has extremely high thermal stability and can maintain chemical stability in high temperatures, even exceeding 2000 ° C, without thermal decomposition.
Good insulation performance: BN powder is an excellent insulation material that can maintain stable dielectric properties under high temperature, high frequency, and high voltage.
High thermal conductivity: BN powder has a higher thermal conductivity than many other non-metallic materials, making it an efficient heat dissipation material, especially suitable for the heat dissipation of high-temperature electronic devices.
Chemical inertness: BN powder exhibits good chemical inertness towards most chemical substances and solvents, making it less prone to chemical reactions. Therefore, it has broad application prospects in the chemical industry.
Application of Hexagonal Boron Nitride BN Powder
High temperature ceramic materials: BN powder can be used to manufacture high-temperature ceramic materials, such as ceramic cutting tools, wear-resistant parts, and high-temperature stoves.
Application of Hexagonal Boron Nitride BN Powder
In the field of electronics and semiconductors: The high thermal conductivity and insulation properties of BN powder make it an ideal material for the electronics and semiconductor fields, and can be used to manufacture heat sinks, insulation layers, and electronic packaging materials.
Composite reinforcement agent: BN powder can be combined with other materials such as polymers, metals, and ceramics to improve the mechanical properties and thermal stability of composite materials, and expand their application fields.
Lubrication and coating materials: BN powder has a low friction coefficient and good lubrication performance, which can be used to manufacture lubricants and coating materials, improve the wear resistance and service life of mechanical components.
Application of Hexagonal Boron Nitride BN Powder
Catalyst carrier: The chemical stability and high specific surface area of BN powder make it an ideal carrier for catalysts, which can be used to improve their activity and stability.
Optics and Transparent Materials: BN powder has excellent optical properties and can be used to manufacture optical materials such as transparent ceramics, optical windows, and optical fibers.
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Q1
What are the main physical properties of the Hexagon Boron Nitride BN Powder?
Answer : The main physical properties of Hexagon Boron Nitride BN Powder include high hardness, high melting point, good chemical stability, and high thermal stability. This powder has a layered structure similar to graphite, which allows it to remain stable in many extreme environments. In addition, its good thermal conductivity and low coefficient of thermal expansion make it widely used in high-temperature applications and heat dissipation materials.
Q2
What are the applications of Hexagon Boron Nitride BN Powder in?
Answer : The Hexagon Boron Nitride BN Powder has applications in multiple fields. Due to its high hardness, high thermal stability, and good chemical stability, it is used as an abrasive, cutting tool, and coating material. In addition, BN powder is widely used in the fields of electronics and semiconductors, such as in high-temperature electronic devices, heat sinks, and insulation materials. It is also used as a reinforcing agent for ceramics and composite materials, improving the mechanical properties and thermal stability of the materials.
Q3
How to prepare Hexagon Boron Nitride BN Powder?
Answer : There are various methods for preparing Hexagon Boron Nitride BN Powder, with the most common being high-temperature synthesis. This method involves reacting boron and nitrogen compounds at high temperatures to generate BN powder. In addition, there are preparation methods such as vapor deposition, chemical vapor deposition, and solvent thermal method. Accurate control of reaction conditions is required during the preparation process to obtain high-quality BN powder.
Q4
What are the similarities and differences between Hexagon Boron Nitride BN Powder and graphite?
Answer : Hexagon Boron Nitride BN Powder and graphite have certain similarities in structure, both having a layered structure, with strong covalent bonds between atoms within the layers and weak van der Waals interactions between layers. This makes them all possess some similar physical properties, such as high hardness, high thermal stability, and good lubricity. However, BN powder differs from graphite in terms of chemical properties. BN powder is a chemically stable material, while graphite is relatively easy to react with certain chemicals. In addition, BN powder has better thermal conductivity than graphite, making it more widely used in high-temperature heat dissipation materials.
Q5
What is the role of Hexagon Boron Nitride BN Powder in composite materials?
Answer : Hexagon Boron Nitride BN Powder plays an important role in composite materials. Due to its high hardness, high thermal stability, and good chemical stability, BN powder can be used as a reinforcing agent to improve the mechanical properties and thermal stability of composite materials. In addition, BN powder also has excellent thermal conductivity, which can effectively improve the thermal conductivity of composite materials, making it widely used in the fields of heat dissipation materials and thermal insulation. BN powder can also increase the wear and corrosion resistance of composite materials, improve the overall performance and service life of composite materials.
Boron Nitride Properties | |
Other Names | Boron nitride |
CAS No. | 10043-11-5 |
Compound Formula | BN |
Molecular Weight | 24.82 |
Appearance | Colorless crystals |
Melting Point | 2973 °C |
Boiling Point | N/A |
Density | 2.1 g/cm3 |
Solubility in H2O | insoluble |
Electrical Resistivity | 13 to 15 10x Ω-m |
Poisson's Ratio | 0.1 |
Specific Heat | 840 to 1610 J/kg-K |
Thermal Conductivity | 29 to 96 W/m-K |
Thermal Expansion | 0.54 to 18 µm/m-K |
Young's Modulus | 14-60 GPa |
Exact Mass | 25.0124 |
Monoisotopic Mass | 25.0124 |
Boron Nitride Health & Safety Information | |
Signal Word | Warning |
Hazard Statements | H319-H335 |
Hazard Codes | Xi |
Risk Codes | 36/37 |
Safety Statements | 26-36 |
RTECS Number | ED7800000 |
Transport Information | N/A |
WGK Germany | 3 |