Customized high quality high temperature resistant boron nitride plate

Overview of boron nitride plate

Boron nitride plate is a high-performance material. It has excellent high-temperature resistance and can be kept stable in a high-temperature environment, has good insulation, and can effectively prevent the passage of electric current; it also has high hardness, high strength characteristics, and wear-resistant performance is excellent. In addition, boron nitride plate has strong chemical stability and is not easily eroded by chemicals. It has a wide range of applications in aerospace, electronics, metallurgy and many other fields and is one of the important materials to promote the development of modern industry.

Features of boron nitride plate

Boron nitride plate has the following significant features:

High-temperature resistance: boron nitride plate has a high melting point and good thermal stability, can be used for a long time in a high-temperature environment without deformation or melting, and can withstand high temperatures of more than 1000 ℃, which makes it in metallurgy, glass and other high-temperature industrial fields are widely used.

Good insulating properties: boron nitride is an excellent electrical insulating material with high resistivity and low dielectric constant, which can effectively prevent the current from passing through and can be used as an insulating part of electronic devices to ensure the safe operation of equipment.

Strong chemical stability: boron nitride plate has strong corrosion resistance to acid, alkali and other chemicals, is not easy to chemical reaction with other substances in the harsh chemical environment, can still maintain stable performance, and is suitable for chemical, pharmaceutical and other industries corrosion-resistant equipment.

Good lubrication: the crystal structure of boron nitride plate makes it have lubrication characteristics similar to graphite, with a low coefficient of friction, which can be used as a solid lubricant under special conditions such as no lubrication or high temperature, high speed, etc. It reduces wear and tear between mechanical parts and improves the service life of equipment.

High mechanical strength: boron nitride plate has high hardness and strength, good wear resistance, is not easy to wear or destroy, can withstand greater pressure and impact, and can be used to manufacture wear-resistant parts, molds and so on.

Specifications table of boron nitride plate

Items	Details
Grade	bn99 (grade ax05), bn-bo (grade a), bncb (grade hp), bns io (m&m 26), bn-aln, zs bn
Composition	hbn > 99.5% for bn99; hbn > 98% for bn-bo; hbn > 90% for bncb; calcium borate for some grades; hbn 40%, sio2 60% (m) for bns io; hbn 60%, sio2 40% (m26) for another form of bns io; bn + aln for bn-aln; albo3, hbn > 45%, zro2 < 45%, borosilicate < 10% for zs bn
Color	White for most grades like bn99, bn-bo, bncb, bns io; gray for zs bn
Density	1.9 g/cm³ for bn99; 2.1 g/cm³ for bn-bo; 2.0 g/cm³ for bncb; 2.1 – 2.3 g/cm³ for bns io; 2.5 – 2.6 g/cm³ for another related type; 2.9 g/cm³ for zs bn
Shape	Plate/sheet, and can also be made into custom parts such as rod, tube, crucible, nozzle etc
Size	Customizable, for example, up to 410 mm x 495 mm x 245 mm in some cases
Melting Point	2973 °C
Refractive Index	1.8 (h-bn); 2.1 (c-bn)
Electrical Resistivity	13 to 15 10x ω – m
Features	Excellent corrosion resistance, high thermal conductivity, thermal shock resistance, excellent moisture resistance, low thermal expansion, spallation resistance, high-temperature resistance, easy machining, good wear resistance, chemical stability, high thermal shock stability
Applications	Electric insulators in vacuum systems, spacers for glass melting, components for ion injection equipment, insulators for high-temperature furnaces etc.

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Applications of boron nitride plate

Boron nitride plate has a wide range of applications in many fields due to its unique properties:

Electronic field: Due to its good insulating properties and thermal stability, boron nitride plate can be used to manufacture insulating brackets and substrates for electronic components, which can effectively isolate circuits, prevent short circuits, and help dissipate heat to ensure the stable operation of electronic equipment. In semiconductor manufacturing, it can also be used as a bearing material for high-temperature diffusion.

Aerospace field: Boron nitride plate’s characteristics of high-temperature resistance and high strength make it an ideal material for manufacturing aero-engine parts and thermal protection systems for space vehicles, capable of withstanding extreme temperatures and pressures and safeguarding the safety performance of the vehicles in harsh environments.

Metallurgical field: The boron nitride plate has strong chemical stability and can be used as a crucible and shunt ring in metallurgical processes to resist the erosion of high-temperature metal liquid and improve the service life of the container. And can also be used as the lining of a continuous casting crystallizer to improve the surface quality of the casting billet.

Mechanical processing field: boron nitride plate, using its lubricity and high hardness, can make tool coating and wear-resistant parts. Tool coating can reduce cutting force, improve tool wear resistance and service life, while wear-resistant parts can be applied to high friction, high wear mechanical moving parts to reduce wear and improve mechanical efficiency.

Optical field: The boron nitride plate has good optical properties and can be used to manufacture parts for optical instruments, such as lens holders, reflector bases, etc. It can ensure the precision and stability of optical instruments in different environments.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By air, by sea, by express, as customers request.

5 FAQs of boron nitride plate

Q1: What are the latest research directions for boron nitride plates?

Superhydrophobic coating: Hexagonal boron nitride and wollastonite composite coating can realize self-cleaning and long-lasting anti-corrosion, which is suitable for marine engineering.

Nanocomposites: Adding boron nitride nanosheets to epoxy resin can improve the impact resistance and thermal conductivity of the coating.

Semiconductor applications: Cubic boron nitride, as a third-generation semiconductor material, has demonstrated its ability to work at high temperatures of 650°C in deep-ultraviolet light-emitting diodes (LEDs).

Q2: How to extend the service life of boron nitride plates?

Avoid sudden cooling and heating: Boron nitride plate has a low coefficient of thermal expansion (2.0-6.5×10-⁶/°C), but drastic temperature changes may still lead to cracking.

Regular cleaning: Use a soft cloth dipped in alcohol to wipe the surface to avoid corrosion caused by metal debris residue.

Storage conditions: Store in a dry environment to prevent moisture absorption from affecting insulation performance.

Q3: Is there any safety hazard of boron nitride plate?

Dust hazard: The nano-scale dust generated during processing may irritate the respiratory tract, so it is recommended to wear a dust mask.

High-temperature protection: In a high-temperature environment above 2000℃, boron nitride may react with carbon to generate boron carbide; avoid contacting graphite and other carbon-containing materials.

Q4: Can the boron nitride plate be cut and drilled?

Yes, but a special process is required. Conventional machining (e.g., CNC milling, laser cutting) can achieve high-precision molding; e.g., the Huanuo laser cutter can make micron-level holes in boron nitride ceramics. 3M’s boron nitride sintered parts even support ultrasonic-assisted machining, which is suitable for the customization of complex shapes.

Q5: How to choose the purity of the boron nitride plate?

Selection is based on the application scenario:

95%-98% purity: for general high-temperature lubrication and refractory additives.

Above 99% purity: for electronic devices (e.g., CPU heat dissipation film), precision optical parts.

Nano-scale purity: used in high-end thermal conductive interface materials, such as 3M’s boron nitride cooling filler.