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Silicon Nitride Sheet | Si3N4 Sheet

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Silicon Nitride (Si3N4) Sheet is an ideal functional ceramic material because of its outstanding thermal shock resistance, excellent creep and oxidation resistance, low thermal conductivity, and high wear resistance. Heeger Materials is a professional supplier and manufacturer of high-quality Silicon Nitride Sheets, offering competitive prices and customized solutions to meet specific needs.

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Data sheet

ColorBlack
Density3.20 g/cm3
MaterialsSi3N4
Size100×100×0.5mm, 130×190×0.5mm, 20×20×5mm, or customized

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Silicon Nitride (Si3N4) Sheet has excellent mechanical strength, fracture toughness, wear resistance, and thermal shock resistance. The maximum working temperature can be up to 1200 ℃. HM can supply high-precision and low-price Silicon Nitride (Si3N4) Sheets with various specifications for choices.

Silicon Nitride Sheet | Si3N4 Sheet

Silicon Nitride (Si3N4) Sheet Specifications

Material

Si3N4

Size

  • 100×100×0.5mm
  • 130×190×0.5mm
  • 20×20×5mm

Or customized according to specific requirements.

Silicon Nitride (Si3N4) Material Properties Parameter

Item

Unit

Si3N4

Color

--

Black

Bending strength

MPa

≥700

Young’s modulus

GPa

310

Thermal conductivity

W/(m·k), 25 ℃

≥80

Bulk density

g/cm3

≥3.17

Breakdown strength

KV/mm

≥20

Coefficient of thermal expansion

10-6/K(RT-400℃)

≤2.7

Fracture toughness

MPa·1/2

≥6.5

Vickers hardness

GPa

≥13

Volume resistivity

Ω·cm

≥1014

Dielectric constant

/

7.8

Dielectric loss

10-3

0.4

Surface roughness (Ra)

μm

≤0.8

Camber

Diagonal%

≤3.0

Silicon Nitride (Si3N4) Sheet Advantages

  • Ultra-thin design
    Reduced material weight allows for efficient use in compact spaces, increasing flexibility in equipment design and overall efficiency.
  • High mechanical strength and rigidity
    The high hardness (HV0.5 of 1500) and modulus of elasticity (290 GPa) of silicon nitride ensure that structural integrity and stability are maintained under extreme conditions.
  • Excellent Thermal Properties
    A low coefficient of thermal expansion (3.1 x 10-6/°C) enables stability in environments with drastic temperature changes, making it suitable for use as a heat exchanger and high-temperature furnace lining.
  • Chemical stability and corrosion resistance
    Silicon nitride is extremely resistant to a wide range of chemicals and is suitable for use in chemical processing environments.

Silicon Nitride (Si3N4) Sheet Applications

  • Heat Exchangers
    Utilizing their high thermal conductivity and thermal stability, they are used as dividers in heat exchangers to improve energy efficiency and thermal management performance.
  • Combustion chamber liners
    Used in high-temperature environments, such as combustion chambers, to provide heat resistance and protective properties to extend equipment life.
  • Semiconductor Manufacturing
    Used in semiconductor manufacturing to protect and isolate sensitive components from thermal damage and chemical corrosion, especially when handling high-temperature processes.

Where to Buy Silicon Nitride (Si3N4) Sheet in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Silicon Nitride Ceramic products, including Silicon Nitride (Si3N4) Sheet, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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