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Ensinger PEI

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Boron Nitride, Cubic BN, (Borazone)
Categories: Ceramic; Nitride

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Physical PropertiesOriginal ValueComments
Density 3.49 g/cc
a Lattice Constant 3.615 Å
 
Mechanical PropertiesOriginal ValueComments
Knoop Microhardness 210 - 390hot pressed; (100 g load) kg/mm²
Hardness, Mohs 10
Tensile Strength, Ultimate 41.0 - 55.0 MPahot pressed, parallel to processing direction
Modulus of Elasticity 41.0 - 97.0 GPahot pressed, parallel to processing direction
 41.0 - 103 GPahot pressed, perpendicular to pressing direction
Compressive Strength 52.0 - 290 MPahot pressed, perpendicular to pressing direction
 41.0 - 317 MPahot pressed, parallel to processing direction
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity >= 3.00e+12 ohm-cm
@Temperature 150 °C
 2.00e+14 ohm-cm
@Temperature 23.0 °C
Dielectric Constant 4.08
@Frequency 1e+6 Hz
Dielectric Strength 374 kV/mm
Dissipation Factor 0.00034
@Frequency 1e+6 Hz
Band Gap 4.6 eV
 
Thermal PropertiesOriginal ValueComments
CTE, linear 4.80 µm/m-°C
@Temperature 21.0 - 500 °C
Specific Heat Capacity 0.793 J/g-°C
Thermal Conductivity 20.0 W/m-K
Melting Point 3027 °CApproximate
Maximum Service Temperature, Air 985 °C
 1300 °COxidation limit
Maximum Service Temperature, Inert 2000 °C
Heat of Formation 815 kJ/mol
Debye Temperature 1627 °CApproximate
 
Descriptive Properties
Crystal StructureCubicSphalerite Structure - Space Group F(-4)3m

References for this datasheet.

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