Customized high purity insulated industrial boron nitride discs

Overview of Boron Nitride Disc

Boron Nitride Disc is a high-performance ceramic disc made of boron nitride powder. It has a hexagonal lattice structure and is white. Boron Nitride Discs have many excellent properties, such as high thermal conductivity, excellent electrical insulation, low coefficient of friction, resistance to thermal shock and chemical resistance. These properties make Boron Nitride Discs excellent for high-temperature applications such as furnace linings, crucibles, heat exchangers, etc., as well as in chemical processing and semiconductor manufacturing.

Features of Boron Nitride Disc

Boron Nitride Discs have the following outstanding features:

High-temperature resistance: Boron nitride disc has a high melting point and thermal stability, can maintain stable physical and chemical properties under high-temperature environments, can withstand high temperatures above 1000℃, and is not easy to deform or melt under high temperatures, which makes it widely used in high-temperature industrial processing.

Good chemical stability: boron nitride disk has excellent chemical stability, strong corrosion resistance to acid, alkali and other chemicals, not easy to chemical reaction with other substances, can maintain stable performance in harsh chemical environments, can be used in the chemical industry for corrosion-resistant containers, piping and other components.

Excellent insulating properties: Boron nitride disk is a good insulator with high resistivity and low dielectric constant, which can effectively prevent the current from passing through, and at the same time, it can also maintain good insulating properties under the high-frequency electric field. Therefore, it is widely used as insulating parts in the field of electronics and electrical.

Good thermal conductivity: boron nitride discs have high thermal conductivity, which can transfer heat quickly and effectively, helping to maintain a stable temperature distribution in some of the equipment that requires heat dissipation or heat equalization, such as for the manufacture of heat sinks, heat exchangers and so on.

Excellent mechanical properties: Boron nitride disk has high hardness and strength but also has a certain toughness, is not easy to rupture or damage, and can withstand a certain pressure and impact in machining and engineering applications with good reliability and durability.

Specifications Table of Boron Nitride Disc

Item	Specification
Material	BN99, ZS BN, BN – ALN, H – BN, etc2
Molecular Weight	24.822
Appearance	White2
Density	2.1 g/cm³ (H – BN); 3.45 g/cm³ (C – BN)2
Melting Point	2973 °C2
Solubility in H₂O	Insoluble2
Refractive Index	1.8 (H – BN); 2.1 (C – BN)2
Electrical Resistivity	10¹³ – 10¹⁵ Ω·m2
Dimensions	Diameter: 10 – 400 mm, thickness: > 2 mm2
Max. Working Temperature	2400 °C (pyrolytic boron nitride in vacuum or inert atmosphere)
Volume Resistivity	3.11×10¹¹ Ω·cm (pyrolytic boron nitride)
Thermal Conductivity	43 – 60 W/m·K (pyrolytic boron nitride)
Tensile Strength	153.86 N/mm² (parallel, pyrolytic boron nitride)
Bending Strength	243.63 N/mm² (parallel, pyrolytic boron nitride)
Dielectric Strength	56 kV/mm (pyrolytic boron nitride)

Play

Applications of Boron Nitride Disc

Boron Nitride Discs have a wide range of applications in many fields due to their unique properties:

Semiconductor industry: Boron Nitride Discs have excellent insulation and high-temperature resistance and can be used as wafer carrier discs in semiconductor manufacturing, providing stable support for wafers in high-temperature processes, ensuring that they are not subject to thermal deformation and impurity contamination. At the same time, the good chemical stability of boron nitride disk also makes it suitable for semiconductor etching, ion implantation and other processes, such as fixtures and mask materials, to protect the process of high precision and consistency.

Electronic packaging field: Using the high thermal conductivity and insulating properties of boron nitride disk, it can be used for the packaging of electronic devices.

High-temperature industrial furnace: In metallurgy, glass and other high-temperature industrial furnace, boron nitride disk can be used as furnace lining material. Its high-temperature resistance and thermal shock resistance can withstand the high-temperature environment and temperature fluctuations in the furnace, reduce heat dissipation and improve the thermal efficiency of the furnace, and also resist the erosion of molten metal and slag in the furnace to extend the service life of the furnace.

Chemical catalytic reaction: In chemical catalytic reaction, boron nitride disk can be used as catalyst carrier. Its large specific surface area and chemical stability can uniformly load catalyst active components and improve catalyst activity and selectivity, and it is not easy to be corroded and poisoned during the reaction process, which helps to maintain the stability of the catalytic reaction.

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 Disc

Q1:Can boron nitride disks be used in vacuum or high pressure environments?

Yes. Cubic boron nitride disks perform stably in vacuum environments, with a vacuum use temperature of up to 1900°C and a very low outgassing rate, making them suitable for semiconductor coating, vacuum heat treatment and other scenarios. In high-pressure environments, Cubic Boron Nitride disks can be used for super-hard cutting tools, high-pressure seals, etc., due to their hardness second only to diamonds.

Q2: How to clean and maintain the boron nitride disk?

When cleaning, you need to avoid using strong acids (e.g., hydrofluoric acid); the following methods can be used:

Mild alkaline solution: Soak with sodium hydroxide or sodium carbonate solution and brush to remove grease and dirt.

Ultrasonic cleaning: Suitable for removing fine particles, need to match with a neutral cleaning agent.

High-temperature baking: drying at 300℃ can remove moisture, but need to avoid sudden cold and heat leading to cracking.

Maintenance: Avoid mechanical collision leading to cracking; if the surface is abraded or contaminated after long-term use, the performance can be restored by sandpaper sanding or secondary etching (e.g., ammonia/hydrogen peroxide mixture).

Q3: Are boron nitride disks fragile? How to process?

Boron nitride disks have high mechanical strength but are brittle and require specific processing methods:

Cutting and drilling: Use a diamond saw blade or laser cutting to avoid stress concentration leading to rupture.

Grinding and polishing: Diamond grinding wheels or CBN abrasives are used for precision machining, with a surface roughness of up to Ra 0.8 or less.

Special fixtures: Processing needs to be fixed with customized fixtures to prevent vibration or displacement.

Q4.:What factors affect the service life of boron nitride disk?

Temperature and atmosphere: High temperature, oxidizing or water-rich environment will accelerate the decomposition of the material and shorten the service life.

Load and Friction: Frequent mechanical shock or high friction can cause surface wear.

Cleaning and maintenance: Regular cleaning reduces the accumulation of impurities and extends the number of uses (e.g., boron nitride crucibles can be reused more than 15 times after cleaning).

Process treatment: Enhancement of interlayer bonding by atomic layer deposition (ALD) and other techniques can improve stability.

Q5: What is the price range of Boron Nitride Discs?

The price of boron nitride disks varies by purity, size, process and supplier. Common industrial-grade hexagonal boron nitride discs (50-100mm diameter) cost about $200-500 per piece, while high purity (>99.9%) or customized specifications (e.g., semiconductor grade) can cost thousands of dollars per piece. Cubic boron nitride disks due to the complexity of the synthesis process, the price is higher; for example, the PCBN cutter unit price is usually 500-2000 yuan/piece. 9.