Boron Nitride Disc Overview
A Boron Nitride Disc is a high-performance ceramic disc composed of boron nitride powder. It features a hexagonal lattice structure and is white. These discs possess numerous exceptional properties, including high thermal conductivity, superior electrical insulation, a low friction coefficient, resistance to thermal shock, and chemical resistance. Due to these characteristics, Boron Nitride Discs are well-suited for high-temperature applications such as furnace linings, crucibles, and heat exchangers, as well as in chemical processing and semiconductor manufacturing.
Boron Nitride Discs
Features of Boron Nitride Discs
Boron Nitride Discs boast the following remarkable features:
High-temperature resistance: With a high melting point and thermal stability, Boron Nitride Discs can maintain stable physical and chemical properties in high-temperature environments, withstand temperatures above 1000℃ without easily deforming or melting, and are thus widely used in high-temperature industrial processes.
Good chemical stability: Boron Nitride Discs exhibit excellent chemical stability and strong corrosion resistance to acids, alkalis, and other chemicals. They are not prone to react with other substances, can maintain stable performance in harsh chemical environments, and are suitable for use in the chemical industry as corrosion-resistant containers and piping components.
Excellent insulating properties: As a good insulator, Boron Nitride Discs have high resistivity and a low dielectric constant, effectively preventing current flow. They can also maintain good insulating properties under high-frequency electric fields and are widely used as insulating components in electronic devices and electrical systems.
Good thermal conductivity: Boron Nitride Discs have high thermal conductivity, enabling rapid and effective heat transfer. They help maintain a stable temperature distribution in equipment requiring heat dissipation or equalization, such as in the manufacture of heat sinks and heat exchangers.
Excellent mechanical properties: Boron Nitride Discs have high hardness and strength, along with a certain degree of toughness. They are not easily broken or damaged, can withstand certain pressures and impacts during machining and engineering applications, and offer good reliability and durability.
Boron Nitride Disc Specifications
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Applications of Boron Nitride Discs
Semiconductor industry: With excellent insulation and high-temperature resistance, Boron Nitride Discs can serve as wafer carrier discs in semiconductor manufacturing. They provide stable support for wafers during high-temperature processes, preventing thermal deformation and impurity contamination. Their good chemical stability also makes them suitable for semiconductor etching, ion implantation, and other processes, such as those involving fixtures and mask materials, to ensure high precision and consistency.
Electronic packaging field: Leveraging the high thermal conductivity and insulating properties of Boron Nitride Discs, they can be utilized for electronic device packaging.
High-temperature industrial furnaces: In high-temperature industrial furnaces used in metallurgy, glass-making, and other industries, Boron Nitride Discs can act as furnace lining materials. Their high-temperature high-temperature resistance and thermal shock resistance enable them to withstand the high-temperature high-temperature environment and temperature fluctuations within the furnace, reducing heat dissipation and enhancing the furnace's thermal efficiency. This resistance also prevents erosion from molten metal and slag in the furnace, thereby extending the furnace's service life.
Chemical catalytic reactions: In chemical catalytic reactions, Boron Nitride Discs can serve as catalyst carriers. Their large specific surface area and chemical stability enable uniform loading of catalyst active components, thereby improving catalyst activity and selectivity. They are also resistant to corrosion and poisoning during the reaction process, helping to maintain the stability of the catalytic reaction.
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.
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 Ceramic Products please feel free to contact us or click on the needed products to send an inquiry.
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5 FAQs About Boron Nitride Discs
Q1: Can Boron Nitride Discs be used in vacuum or high-pressure environments?
Yes. Cubic Boron Nitride (CBN) discs demonstrate stable performance in vacuum environments, with a maximum vacuum usage temperature of up to 1900°C and a very low outgassing rate, making them suitable for semiconductor coating and vacuum heat treatment applications. In high-pressure environments, Cubic Boron Nitride (CBN) discs can be utilized as super-hard cutting tools and high-pressure seals due to their hardness, which is second only to that of diamonds.
Q2: How to clean and maintain Boron Nitride Discs?
When cleaning, avoid using strong acids, such as hydrofluoric acid. The following methods can be employed:
Mild alkaline solution: Soak in a sodium hydroxide or sodium carbonate solution and brush to remove grease and dirt.
Ultrasonic cleaning: Suitable for removing fine particles, used in conjunction with a neutral cleaning agent.
High-temperature baking: Drying at 300℃ can remove moisture but avoid sudden cooling and heating to prevent cracking.
For maintenance: Prevent mechanical collisions that may cause cracking. If the surface becomes abraded or contaminated after long-term use, the performance can be restored by sanding with sandpaper or secondary etching (e.g., with an ammonia/hydrogen peroxide mixture).
Q3: Are Boron Nitride Discs fragile? How to process them?
Boron Nitride Discs have high mechanical strength but are brittle and require specific processing methods:
Cutting and drilling: Use a diamond saw blade or laser cutting to minimize stress concentration and prevent rupture.
Grinding and polishing: Precision machining can be achieved using diamond grinding wheels or CBN abrasives, resulting in a surface roughness of Ra 0.8 or less.
Special fixtures: Processing requires fixation with customized fixtures to prevent vibration or displacement.
Q4: What factors affect the service life of Boron Nitride Discs?
Temperature and atmosphere: High temperatures, oxidizing environments, or water-rich environments can accelerate material decomposition and shorten service life.
Load and friction: Frequent mechanical shocks or high friction can cause surface wear.
Cleaning and maintenance: Regular cleaning reduces impurity accumulation and extends the lifespan of the product (e.g., Boron Nitride crucibles can be reused over 15 times after cleaning).
Process treatment: Techniques like atomic layer deposition (ALD) can enhance interlayer bonding and improve stability.
Q5: What is the price range of Boron Nitride Discs?
The price of Boron Nitride Discs varies based on purity, size, process, and supplier. Common industrial-grade hexagonal Boron Nitride Discs (with diameters of 50 - 100mm) typically cost around $200 - 500 per piece. High-purity (>99.9%) or customized specifications (e.g., semiconductor-grade) can cost thousands of dollars per piece. Due to the complex synthesis process, Cubic Boron Nitride Discs are more expensive; for example, the unit price of PCBN cutters is typically 500-2000 yuan per piece.
