Place of Origin:Guangdong, China
Material Introduction:
Boron Nitride Disc is made from high-purity Boron Nitride Ceramic, a machinable white ceramic material with excellent thermal insulation, electrical insulation, low friction, and non-wetting properties. It is commonly used for precision disc-shaped components in high-temperature separation, insulation, and clean processing environments.
Functional Features:
Good machinability, stable ceramic structure, excellent electrical insulation, low friction surface, good resistance to thermal shock, and low adhesion to many molten metals and process materials. Custom diameter, thickness, holes, slots, chamfers, and surface finishing can be produced according to drawings for different Precision Ceramic Components applications.
Application Industries:
Semiconductor processing, vacuum furnace equipment, high-temperature insulation systems, crystal growth equipment, molten metal handling, electronic ceramic fixtures, laboratory heating platforms, and precision thermal processing components.
Delivery Time:
Delivery time will be confirmed according to disc size, thickness, tolerance requirements, machining complexity, quantity, material grade, and inspection standards. For custom boron nitride ceramic discs, we will review your drawings and application conditions before confirming the production schedule.
Boron Nitride Disc is a precision-machined ceramic disc made from high-purity boron nitride material. It is designed for high-temperature insulation, clean separation, anti-sticking contact, and electrical isolation. With low wettability, excellent machinability, and stable performance in vacuum or inert atmosphere, BN discs are widely used in vacuum furnaces, semiconductor fixtures, molten metal handling, crystal growth, and laboratory heating systems.
This Boron Nitride Disc is produced from high-purity Boron Nitride Ceramic. HPBN, or hot-pressed boron nitride, is commonly used for machined discs, furnace spacers, insulating pads, and custom fixtures. PBN, or pyrolytic boron nitride, is more suitable for high-purity thermal processes, coating-related parts, and cleaner working environments.
Compared with many sintered ceramics, boron nitride is easier to machine into discs, thin plates, holes, grooves, slots, and special profiles. This makes it a practical choice when customers need both high-temperature performance and flexible custom machining.
| Parameter | Typical Value | Application Meaning |
|---|---|---|
| Material Type | HPBN / PBN / Custom BN grades | Selected according to purity, machining needs, and working environment. |
| Max Service Temperature | Up to 1800°C in vacuum / up to 2100°C in inert atmosphere | Suitable for high-temperature insulation and separation applications. |
| Thermal Conductivity | 30–100 W/(m·K) | Helps reduce local heat buildup in thermal processing systems. |
| Dielectric Strength | 25–40 kV/mm | Provides electrical isolation for high-temperature fixtures and insulation parts. |
| Density | 1.9–2.1 g/cm3 | Lightweight and suitable for support or fixture components. |
| Machinability | Excellent | Suitable for custom holes, grooves, slots, chamfers, and thin disc structures. |
Note: The values above are typical reference data. Final performance depends on BN grade, part size, machining design, atmosphere, and actual working conditions.
| Material | Main Advantage | Limitation | Recommended Use |
|---|---|---|---|
| Boron Nitride Ceramic | Easy machining, low wettability, electrical insulation, anti-sticking surface | Oxidizing high-temperature use should be reviewed by grade and condition | Vacuum furnace discs, molten metal separation, semiconductor fixtures, insulation pads |
| Alumina Ceramic | Cost-effective, hard, and electrically insulating | More difficult to machine after sintering and not ideal for anti-sticking contact | General insulation parts, ceramic tubes, plates, and structural ceramic parts |
| Zirconia Ceramic | Good toughness and mechanical strength | Not as easy to machine into custom BN-style discs | Mechanical wear parts, sleeves, plungers, and valve components |
| Silicon Nitride Ceramic | High strength and good thermal shock resistance | Higher machining cost and less flexible for fast custom disc machining | High-load mechanical parts, bearings, welding pins, and shafts |
It is mainly used for high-temperature insulation, furnace spacing, semiconductor fixtures, molten metal separation, crystal growth support, and laboratory heating platforms.
Yes. Diameter, thickness, holes, slots, counterbores, chamfers, flatness, parallelism, and surface finish can be customized according to drawings.
HPBN is commonly used for machined discs, jigs, spacers, and furnace parts. PBN is usually selected for higher-purity applications and cleaner thermal process environments.
Yes. BN discs are suitable for many vacuum and inert atmosphere furnace applications. The actual service temperature should be confirmed according to material grade, part size, and working conditions.
Yes. BN has low wettability to many molten metals and glasses, so it is often used for anti-sticking, separation, and lower contamination applications.
Yes. Boron nitride is easy to machine, so holes, grooves, slots, counterbores, and custom disc profiles can be produced according to drawings.
Yes. BN ceramic provides good electrical insulation and is suitable for high-temperature insulation fixtures and semiconductor-related applications.
Yes. Thin BN discs can be produced, but feasibility depends on diameter, thickness, hole design, flatness requirement, and handling risk.
Please provide drawing, diameter, thickness, tolerance, quantity, working temperature, atmosphere, contact material, surface finish, and application details.
Yes. We can inspect dimensions, flatness, parallelism, hole position, edge condition, surface quality, and other drawing requirements before shipment.
