Bornitridkeramik för högtemperaturapplikationer
Boron Nitride Ceramics are advanced materials specifically designed to perform under extreme environments. When hot-pressed into dense components, these ceramics commonly known as HPBN offer
an unmatched balance of thermal, electrical, and mechanical properties. Their unique combination of benefits makes them the go-to solution for a wide range of high-temperature applications.
At Mascera, we specialize in machinable boron nitride components that meet the technical and environmental demands of modern industries. Whether it's molten metal processing, aerospace propulsion, or vacuum chamber insulation, our machinable boron nitride products deliver stable, reliable performance.
Boron Nitride Ceramics Excel in High-Temperature Applications
hot-pressed boron nitride, is a form of boron nitride ceramics made by compressing hexagonal BN powder at high temperature. This results in a ceramic that is not only thermally and electrically stable but also a machinable boron nitride, capable of being fabricated into complex shapes using standard tools.
Key advantages of HPBN include:
Thermal Stability
Operates reliably in high-temperature applications up to 2000 °C in vacuum or inert atmospheres.
Electrical Insulation
Volume resistivity ssshhh10^12 Ω·cm, ideal for insulating high-voltage components.
Thermal Conductivity
35–85W/m·K, facilitating efficient heat dissipation in compact assemblies.
Chemical Inertness
Resistant to most acids, molten metals, and reactive gases.
Non-wettability
Rejects adhesion from molten aluminum, zinc, and glass.
Lightweight and Thermally Shock Resistant
Performs where both strength and weight matter.
Machinability
Unlike most ceramics, machinable boron nitride can be drilled, milled, or turned easily, making it cost-effective for both prototyping and batch production.
These characteristics position boron nitride ceramics as an ideal choice for high-temperature applications where reliability, purity, and design flexibility are critical.
HPBN Ceramic Applications Across Industries
1. Metallurgy and Molten Metal Processing
boron nitride ceramics (HPBN) are widely used in:
Crucibles and boats for melting aluminum, magnesium, and silicon alloys.
Break rings, nozzles, and tubes in continuous casting lines.
Thermocouple protection sleeves that resist corrosion and thermal shock.
Thanks to the non-wetting nature of HPBN, molten metals do not adhere to the surface, preventing contamination and improving product purity. This makes machinable boron nitride an essential material in foundries and high-purity metal applications.
2. Aerospace and Propulsion Systems
In aerospace, HPBN is employed for:
Hall-effect thruster discharge channels and spacers.
Heat shields, radomes, and structural insulators in propulsion modules.
Plasma-facing components that must survive reentry temperatures and high radiation.
Boron nitride ceramics offer a powerful advantage: high thermal endurance with low mass. They ensure mission stability in satellites and spacecraft exposed to extreme heat and fluctuating pressures.
3. Vacuum and Plasma Processing Equipment
In environments where conventional materials fail, machinable boron nitride shines. Common HPBN uses include:
Chamber liners and insulators in PVD and CVD systems.
Support plates and standoffs in high-voltage vacuum furnaces.
Microwave-transparent windows and dielectric barriers in RF systems.
Ion implantation beamline isolators for semiconductor research tools.
These components operate under vacuum, high heat, and corrosive plasma without releasing contaminants. That's why HPBN is the material of choice for high-precision, clean-environment, high-temperature applications.
4. Energy and Nuclear Technology
With a high boron content, boron nitride ceramics also serve as:
Neutron absorbers and shielding panels in reactor facilities.
Core insulators and cable spacers for high-voltage systems.
Plasma chamber linings in nuclear fusion equipment.
Unlike other materials, HPBN does not degrade easily under radiation or thermal stress, maintaining structural integrity in long-duration cycles. Its machinability also allows precise installation into complex shielding geometries.
5. General High-Temperature Industrial Use
machinable boron nitride parts for various thermal and chemical systems:
Vacuum furnace components such as supports, rails, and fasteners.
Dry-lubricated bearings and valve seats in high-friction assemblies.
Casting mold inserts and release parts for glass and ceramic forming.
These high-temperature applications benefit from HPBN's combination of thermal reliability and dimensional accuracy.
Why Choose Mascera's HPBN Solutions?
We specialize in delivering custom HPBN components that meet your design, environment, and performance requirements. Advantages of working with Mascera include:
Custom machining to drawings and tight tolerances.
A variety of shapes: rings, rods, crucibles, tubes, plates.
High-purity boron nitride ceramics for clean applications.
Expert technical support and fast lead times.
Suitable for R&D, prototyping, and mass production.
By choosing Mascera, you benefit from years of ceramic engineering experience and a commitment to quality in all high-temperature applications.
If your process involves heat, voltage, corrosion, or precision, boron nitride ceramics offer a safe and proven solution. Our HPBN products are trusted across industries for their thermal stability, insulation strength, and ease of machining.As a leader in machinable boron nitride, Mascera provides customed solutions for real-world engineering challenges especially in the most demanding high-temperature applications.
