Pyrolytic Boron Nitride Plate/Sheet/Disc

Pyrolytic Boron Nitride Plate/Sheet/Disc

Purity: 99.99%-99.999%

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price

  • Pyrolytic Boron Nitride Plate/Sheet/Disc is a high-performance ceramic component made with ultra-high purity and excellent high-temperature insulation properties. It is commonly used in semiconductor manufacturing, high-temperature equipment, aerospace thermal management, optical substrates, and other scientific research. As a leading supplier and manufacturer of premium pyrolytic boron nitride products, we can supply high-quality pyrolytic boron nitride plates, sheets, and discs with various specifications and competitive prices, offering customized solutions to meet specific requirements.
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Pyrolytic Boron Nitride Plate/Sheet/Disc Data Sheet

Purity:

99.99%-99.999%

Color:

White

Density:

1.95-2.20 g/cm3

Production Method:

CVD

Pyrolytic Boron Nitride Plate/Sheet/Disc

Pyrolytic Boron Nitride Plate/Sheet/Disc is a high-purity and high-performance ceramic material. Unlike conventional hot-pressed boron nitride, it is produced through chemical vapor deposition (CVD) under vacuum conditions, using ammonia and boron halides without the need for traditional hot-press sintering or sintering agents. It offers ultra-high purity (up to 99.999%), exceptional high-temperature resistance (up to 2000℃), corrosion resistance, thermal conductivity, and electrical insulation. Advanced Ceramics Hub can supply customized solutions for length, width, diameter, thickness, and surface finishes to meet specific requirements.

Pyrolytic Boron Nitride Plate/Sheet Specifications

  • Pyrolytic Boron Nitride plate and Sheet Dimension HM

Item

Value

Lattice Constant

a:2.504×10-10 μm
c:6.692×10-10 μm

Density

2.0-2.19 g/cm3

Resistivity

3.11×1011 Ω·cm

Tensile Strength (ab)

153.86 N/mm2

Bend Strength

a

N/mm2

ab

197.76 N/mm2

Elastic Modulus

235690 N/mm2

Thermal Conductivity

(200°С)

W/m·k

(900°С)

“a” direction:43.70 W/m·k
“c” direction:2.80 W/m·k

Dielectric Strength (at room temperature)

56 KV/mm

Pyrolytic Boron Nitride Plate/Sheet/Disc Advantages

  • Non-toxic, odorless.
  • High purity, exceeding 99.999%.
  • Do not react with acids, alkalis, salts, or organic reagents at room temperature; slightly corrodes in molten salt or alkali solutions but is resistant to corrosion by most acids at high temperatures.
  • Do not react with most molten metals, semiconductors, or their compounds.
  • Exhibits good oxidation resistance below 1000°C.
  • Excellent thermal shock resistance, with no cracks observed when immersed in water at 2000°C.
  • High operating temperature with no sublimation point; decomposes directly into B and N above 3000°C.
  • High electrical resistance and good electrical insulation properties.
  • Smooth surface with no pores, does not wet most semiconductor melts.
  • High flexural strength
  • Easy to process with high precision

Pyrolytic Boron Nitride Plate/Sheet/Disc Applications

  • High-temperature furnace linings: PBN materials can maintain stability in high-temperature environments, making them widely used as furnace linings, and internal components, such as heating elements and crucibles.
  • Semiconductor manufacturing: Due to its electrical insulating properties and high-temperature stability, PBN is a key material in semiconductor production, especially for thermal insulation and electrical isolation during crystal growth processes.
  • Electrical insulation materials: PBN plates and sheets are used in high-voltage environments for electrical insulation, providing protection for sensitive components in electrical devices.
  • Thermal management materials: With its excellent thermal conductivity, PBN is used in applications requiring efficient heat dissipation, such as in electronic devices and laser systems for thermal management.
  • Electric and Electrical Equipments HM
    Electrical and Electronic Area
  • High temperatuer furnaces applications HM 1
    High-temperature Furnaces
  • Chemical Equipment HM
    Chemical Equipment
  • Aerospace Applications HM 1
    Aerospace

Pyrolytic Boron Nitride Material Properties

Mechanical Properties

Tensile Strength, Ultimate
（23°C)

40.0 MPa

103 MPa

Modulus of Elasticity 

22.0 GPa

Flexural Strength 

80.0 MPa

Compressive Strength 

234 MPa

Poissons Ratio 

0.25

Shear Modulus 

8.80 GPa

Thermal Properties

Thermal Conductivity 

2.00 W/m-K

60.0 W/m-K

Maximum Service Temperature, Air 

750 °C

Maximum Service Temperature, Inert 

2500 °C

Electrical Properties

Electrical Resistivity 

1.00e+15 ohm-cm

Dielectric Constant 

3.4

5.2

Dielectric Strength 

200 kV/mm

Pyrolytic Boron Nitride Machining

Pyrolytic Boron Nitride Machining Center HM 3

The Advanced Ceramic Hub machining center is equipped with multiple CNC lathes and CNC milling machines, and it is backed by extensive machining experience. We offer customized pyrolytic boron nitride ceramic products and profiles with extremely tight tolerances, tailored to customer requirements. During the machining process, the following precautions should be observed:

  • Pyrolytic boron nitride ceramic materials can be machined using standard high-speed steel cutting tools. For harder and composite materials, carbide or diamond tools are recommended.
  • Grinding operations can be performed as needed, and standard taps and dies can be used to machine threads.
  • The machining process should always be kept dry, with no need for cutting oils or coolants.
  • Cutting tools should be sharp and clean, and tools with negative rake angles should not be used.
  • Care should be taken when clamping and securing materials to avoid applying excessive pressure. Climb milling techniques should be used to prevent edge and corner chipping.

Pyrolytic Boron Nitride Packaging

Pyrolytic Boron Nitride Ceramic 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.

ceramic products packing HM

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To customize your pyrolytic boron nitride plate, pyrolytic boron nitride sheet, or pyrolytic boron nitride disc, please provide the following details:

  1. Dimensions: Length, width, diameter, and thickness.
  2. Purity of the material
  3. Tolerances: Specify the tolerances you can apcept.
  4. Surface Finish: polished, rough, etc.
  5. Quantity of the products you need
  6. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of boron nitride products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

Pyrolytic Boron Nitride (PBN) is a boron nitride material with ultra-high purity, typically produced through a chemical vapor deposition (CVD) process under vacuum conditions. Unlike conventional hot-pressed boron nitride, PBN does not require the addition of sintering agents or undergoes the traditional hot-press sintering process. The production process is more refined, achieving a purity of over 99.999%. Pyrolytic Boron Nitride exhibits excellent resistance to acids, alkalis, molten metals, and other chemical corrosion, along with outstanding electrical insulation properties. It is widely used in high-tech fields such as semiconductor manufacturing, high-temperature furnaces, and aerospace systems.

Hexagonal boron nitride (h-BN): Its structure is similar to graphite, often referred to as “white graphite.” The layered structure gives it excellent lubricating properties, electrical conductivity, and high-temperature stability. It is the most widely used form, primarily applied in lubricants, insulating materials, and refractory materials.

Cubic boron nitride (c-BN): Its structure resembles that of diamond, offering extremely high hardness and thermal conductivity. C-BN is mainly used in the production of cutting tools and abrasives, and is widely applied in the field of machining.

Pyrolytic Boron Nitride (PBN) is primarily produced through a chemical vapor deposition (CVD) process. In this process, precursor gases such as ammonia (NH₃) and boron trichloride (BCl₃) react under vacuum conditions, forming boron nitride films. The reaction typically occurs at high temperatures, where the gases decompose and the boron nitride deposits as a solid on the substrate surface. This production process ensures that Pyrolytic Boron Nitride materials exhibit excellent chemical stability and electrical insulation properties.

Advanced Ceramic Hub, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of graphene products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of ceramics, refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

Pyrolytic Boron Nitride Plate/Sheet/Disc

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