Boron Nitride Ring
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Boron Nitride Ring withstands 1800°C (inert), thermal shock, non-wetting, insulating. No outgassing/contamination. Ideal for sealing, spacing, insulating in semiconductor, aerospace, and vacuum systems.NexusX Advanced Materials, as a premier manufacturer and supplier of high-quality. Boron Nitride (BN) products, focuses on producing high-precision aluminum nitride silicon structural compenents through advanced technologies for diverse application fields.
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Boron Nitride Ring Date Sheet
Material Grade: | Grade A, Grade AX05, Grade HP, M/M26, ZSBN, HMBN 1000, HMBN2000, HMBN3000, HMBN4000, HMBN5000, etc. |
Color: | White |
Melting Point: | 2937 ℃ |
Density | 1.9-2.2 g/cm3 |
Dielectric Constant: | 4.3 |
Boron Nitride Ring Descriptions
Boron Nitride Ring is a precision-machined ceramic component made from high-purity hexagonal boron nitride (hBN), designed for demanding high-temperature, corrosive, and electrically sensitive environments. These rings exhibit exceptional thermal stability up to 1800°C in inert or vacuum atmospheres, along with outstanding resistance to thermal shock, allowing them to survive rapid temperature cycling without cracking. The material’s inherent non-wetting property prevents molten metals, glasses, and slags from adhering to the ring surface, while its chemical inertness ensures compatibility with most corrosive media. As an excellent electrical insulator, Boron Nitride Rings are ideal for applications requiring electrical isolation. Unlike conventional graphite, ceramic, or metal rings, BN rings do not outgas, resist oxidation better than graphite, and introduce no contaminants into high-purity processes. Common configurations include seal rings, spacer rings, insulating rings, furnace viewport rings, and plasma system components. They are easily machinable to precise inner and outer diameters, thicknesses, and custom groove patterns, making them versatile solutions for semiconductor equipment, aerospace assemblies, vacuum chambers, and high-temperature furnaces.
Boron Nitride Ring Advantages
- High Temperature Resistance – Withstands continuous operation up to 1800°C in inert or vacuum atmospheres.
- Excellent Thermal Shock Resistance – Survives rapid temperature changes without cracking or deformation.
- Non-Wetting Properties – Molten metals (e.g., aluminum, zinc, copper) and glasses do not adhere to the ring surface.
- Chemical Inertness – Resists corrosion from most acids, alkalis, slags, and molten materials.
- Excellent Electrical Insulation – Provides high dielectric strength, ideal for electrically isolated sealing and spacing applications.
- No Outgassing / High Purity – Does not release volatile contaminants, making it safe for semiconductor and vacuum systems.
- Low Friction / Natural Lubricity – Reduces wear on mating surfaces and prevents galling.
- Easy Machinability – Can be precisely machined to custom inner/outer diameters, thicknesses, and groove patterns using standard carbide tools.
- Low Thermal Conductivity – Acts as a thermal barrier in certain applications, unlike metal rings.
- Long Service Life – Outlasts graphite, ceramic, and metal rings in high-temperature corrosive environments.
Boron Nitride Ring Applications
- Semiconductor Processing – Used as insulating rings, focus rings, and seal rings in plasma etchers, CVD chambers, and diffusion furnaces.
- High-Temperature Furnaces – Serves as viewport rings, thermocouple feedthrough rings, and heating element support rings.
- Vacuum Systems – Functions as seal rings and spacer rings in high and ultra-high vacuum chambers due to low outgassing.
- Aerospace & Defense – Used in rocket engine components, plasma thrusters, and high-temperature sealing assemblies.
- Molten Metal Handling – Acts as guide rings, nozzle rings, and pouring rings in aluminum, zinc, and magnesium casting.
- Glass Manufacturing – Serves as forming rings, support rings, and non-stick contact rings in glass melting and shaping processes.
- Electrical Insulation – Used as insulator rings for high-voltage feedthroughs, induction heating coils, and plasma systems.
- Laboratory Research – Functions as crucible support rings, sample holder rings, and spacer rings in high-temperature experiments.
- Chemical Processing – Serves as corrosion-resistant seal rings in reactors handling aggressive chemicals or molten salts.
- Heat Treating Equipment – Used as fixture rings and workholder rings for high-temperature metal and ceramic processing.
Boron Nitride Ring Packaging
Boron Nitride Ring products are typically packaged in vacuum-sealed bags to prevent moisture or contamination, and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.
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- SAFETY DATA SHEET (SDS) -Boron Nitride Ring
FAQ
What temperature can a Boron Nitride Ring withstand?
A Boron Nitride Ring can withstand continuous operation up to 1800°C in inert or vacuum atmospheres, and up to 850°C in oxidizing environments.
Is a Boron Nitride Ring electrically conductive?
No, a Boron Nitride Ring is an excellent electrical insulator, making it ideal for high-voltage feedthroughs, plasma systems, and induction heating equipment.
Is a Boron Nitride Ring better than a ceramic or metal ring?
A Boron Nitride Ring offers better thermal shock resistance, non-wetting properties, electrical insulation, and no outgassing compared to most ceramic or metal rings in extreme environments.
Can a Boron Nitride Ring be machined into custom sizes?
Yes, a Boron Nitride Ring is easy to machine using standard carbide tools into precise inner and outer diameters, thicknesses, and custom groove patterns.
What industries commonly use Boron Nitride Rings?
Boron Nitride Rings are widely used in semiconductor manufacturing, aerospace, vacuum systems, glass processing, molten metal casting, and high-temperature furnace industries.
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