High Working Temperature Corrosion Resistance Boron Nitride Gasket

Overview of Boron Nitride Gasket:

Boron nitride (BN) gaskets are specialized sealing components that leverage the unique properties of boron nitride to provide superior performance in demanding applications. These gaskets are typically manufactured from hexagonal boron nitride (h-BN), which offers a combination of thermal stability, electrical insulation, and chemical resistance.

Features of Boron Nitride Gasket:

1.High thermal conductivity:

Highly efficient thermal conductivity: allows for effective thermal management in high temperature environments.

2. Excellent electrical insulation:

Excellent electrical insulation for safe use in electrical systems.

3. Chemical Stability:

Resistant to most chemicals even at high temperatures, ensuring durability in corrosive environments.

4. Low Coefficient of Thermal Expansion:

The low coefficient of thermal expansion reduces the risk of cracking or deformation when temperature changes and maintains dimensional stability.

5. Mechanical Strength:

High hardness and wear resistance contribute to long-lasting performance.

6. Self-lubricating properties:

The layered structure of hexagonal boron nitride provides natural lubrication and reduces friction between moving parts.

7. Non-Toxic and Chemically Inert:

Environmentally friendly and safe for handling and disposal.

8. Wide Operating Temperature Range:

It can operate effectively from cryogenic temperatures up to 1,000°C in air and higher in vacuum or inert atmospheres.

Specifications of Boron Nitride Gasket:

Property	Typical Value	Unit	Notes
Material Type	Hexagonal Boron Nitride (h-BN)		Layered structure similar to graphite; most common form for gaskets
Density	2.27	g/cm³	For h-BN
Hardness (Mohs Scale)	~2		Relatively soft compared to c-BN
Melting Point	>3,000	°C	High melting point ensures stability in high-temperature environments
Thermal Conductivity	60 – 300	W/m·K	Along the basal plane for h-BN
Coefficient of Thermal Expansion (CTE)	2.5 – 4.5	×10⁻⁶/°C	Low CTE minimizes thermal expansion and contraction
Electrical Resistivity	>10¹²	Ω·cm	Excellent electrical insulation
Dielectric Strength	10 – 20	kV/mm	Good dielectric properties
Chemical Stability	Chemically inert		Resistant to most chemicals, even at high temperatures
Friction Coefficient	0.1 – 0.2		Self-lubricating properties
Porosity	<1%		Typically very low porosity for dense sintered products
Flexural Strength	200 – 400	MPa	Depends on manufacturing process and material type
Compressive Strength	1,000 – 3,000	MPa	High compressive strength suitable for mechanical applications
Operating Temperature Range	-269 to +1,000	°C	Wide range from cryogenic to high temperatures
Neutron Absorption Cross Section	Moderate	barns	Beneficial for nuclear applications
Bandgap Energy	5.9 – 6.2	eV	Wide bandgap makes it suitable for high-power electronic devices

Applications of Boron Nitride Gasket:

1. Heat Management

Heat exchangers: BN gaskets are used in heat exchangers where efficient heat transfer and chemical resistance are required. Their high thermal conductivity ensures effective cooling while maintaining structural integrity in corrosive environments.

Cooling Jackets: Ideal for cooling jackets for electronic equipment and machinery, they provide thermal management and electrical insulation to protect sensitive components.

2. Electronics and Semiconductors

Substrates and Insulation: Critical to substrates and insulation in semiconductor devices to ensure reliable operation under high thermal loads.

Heat Sinks: Critical for managing heat in power electronics, CPUs, GPUs and other high performance electronic components, BN gaskets improve heat dissipation without compromising electrical insulation.

3. Automotive and Aerospace

Engine Components: Used in engine components that need to withstand high temperatures and corrosive environments, BN gaskets help increase durability and reliability and reduce maintenance requirements.

Exhaust systems: For exhaust system components due to their thermal stability and chemical inertness. They can withstand extreme temperatures and corrosive gases, extending component life.

Power electronics: BN gaskets ensure safe and reliable operation under a wide range of conditions.

4. Manufacturing and Processing

High-temperature molds: For molds used in metal casting and other manufacturing processes that require high thermal stability and low coefficient of thermal expansion (CTE) BN gaskets maintain dimensional accuracy even at high temperatures.

Precision Components: Used in precision engineering applications where dimensional stability and thermal performance are critical BN gaskets provide a reliable sealing solution that will not deform or degrade over time.

5. Chemical Processing

Reactor linings: In reactors where materials must withstand both aggressive chemicals and high temperatures, BN gaskets ensure long-term durability and safety in harsh environments.

Heat exchangers: Used in industrial processes involving high-temperature heat transfer to maintain efficient thermal performance and chemical resistance.

6. Metallurgy

Crucibles and refractory components: BN gaskets are used in crucibles and other refractory components in metal melting and alloying processes.

7. Energy Production

Nuclear Reactors: Components in nuclear reactors benefit from the neutron-absorbing properties and thermal stability of BN, which plays a vital role in reactor control and safety. BN gaskets provide reliable seals in highly radioactive environments.

Fuel Cells: Used as gas diffusion layers and catalyst carriers, BN’s high temperature properties and chemical stability are utilized to improve the efficiency and durability of fuel cells.

8. Biomedical Applications

Medical Implants: Biocompatible coatings for implants or devices due to their non-reactivity and stability; BN gaskets ensure patient safety and device longevity.

Drug Delivery Systems: BN nanoparticles can be functionalized for targeted drug delivery by taking advantage of BN’s biocompatibility and stability in biological tissues.

9. Research and Development

Advanced Materials Development: Research and development of new materials with application-specific properties to advance materials science and engineering.

Nanotechnology: Explore the unique quantum properties of nanoelectronic and optoelectronic devices to advance technology and innovation.

10. Environmental Applications

Catalyst Carriers: Provide stable platforms for catalyst particles in a variety of chemical reactions, especially high-temperature processes, to promote sustainable and efficient catalysis.

Electrocatalysis: Energy conversion and storage systems for electrochemical batteries to support environmentally friendly technologies.

Company Profile

Advanced Ceramics founded on October 17, 2012, is a high-tech enterprise committed to the research and development, production, processing, sales and technical services of ceramic relative materials and products.. Since its establishment in 2012, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Aluminum Nitride Ceramic Products, Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, Quartz Products, etc. Please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

FAQs of Boron Nitride Gasket

1.What is a boron nitride gasket?

A: A boron nitride gasket is a sealing component made from hexagonal boron nitride (h-BN), known for its excellent thermal conductivity, electrical insulation, chemical stability, and mechanical strength. It is used in various industries to provide reliable sealing solutions in demanding environments.

2. What are the main types of boron nitride used for gaskets?

A: The primary type used for gaskets is hexagonal boron nitride (h-BN), which has a layered structure similar to graphite. This form provides good lubricity, thermal conductivity, and chemical resistance.

3. Can boron nitride gaskets withstand high temperatures?

A: Yes, boron nitride gaskets can withstand very high temperatures, up to 1,000℃ in air and higher in vacuum or inert atmospheres, making them suitable for high-temperature applications.

4. Can boron nitride gaskets be customized?

A: Yes, many manufacturers offer custom sizes and shapes based on specific application needs. Customization can include dimensions, tolerances, surface finishes, and even material composition.

5. Are boron nitride gaskets safe to handle?

A: Yes, boron nitride is non-toxic and chemically inert, making it safe to handle. However, standard safety practices should be followed when working with any industrial material, including weaGasket appropriate personal protective equipment (PPE).