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Grade: Pyrolitic
Formula: BN
Form: Foil
Material: Boron Nitride
CAS Number: 10043-11-5
Commodity: Ceramics
Thickness:
1mm
Pyrolitic Boron Nitride sheets are a high purity, hexagonal boron nitride product. An ultra-high temperature ceramic, they possess properties such as high thermal conductivity, electrical resistivity and lubricity. Pyrolitic Boron Nitride sheets are available in 2 variations to suit different requirements. Typical applications for these advanced ceramic sheets include being used as a substrate for semiconductor devices, crucibles and fixtures for molten metal processing, and components requiring resistance to thermal shock or corrosion.
Tolerances
Foil
| Thickness | ±20% |
|---|
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair |
| Acids - dilute | Fair |
| Alkalis | Fair |
| Halogens | Poor |
| Metals | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 4.3 |
| Dielectric strength( kV mm⁻¹ ) | 40-200 |
| Volume resistivity( Ohmcm ) | 10¹¹-10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Apparent porosity( % ) | Feb-15 |
| Density( gcm⁻³ ) | 1.9-2.2 |
Thermal Properties
| Element | Value |
|---|---|
| Sublimation point( C ) | 2600-2800 |
| Upper continuous use temperature( C ) | 950-2500 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 800-2000@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 15-50@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 1-36@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 20-35 |
| Shear strength( MPa ) | Dec-25 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 30-120 |
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