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Elmet Technologies

Momentive Performance Materials PolarTherm® PT140 Boron Nitride (BN) Powder
Categories: Ceramic; Nitride; Other Engineering Material; Additive/Filler for Polymer

Material Notes: Fine Hexagonal BN Powder

When used in a variety of polymeric materials, PolarTherm™'s heat dissipating capability helps extend the service life and enhance the reliability of electronic components and assemblies.

Information provided by Momentive Performance Materials, formerly GE Advanced Ceramics.

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Physical PropertiesMetricEnglishComments
Density 2.25 g/cc0.0813 lb/in³Theoretical
Particle Size 8.0 - 14 µm8.0 - 14 µmaverage
Specific Surface Area 3.0 - 8.0 m²/g3.0 - 8.0 m²/g
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 1111
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cm
Dielectric Constant 3.93.9
Dissipation Factor <= 0.00020
@Frequency 1e+6 Hz
<= 0.00020
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear <= 1.00 µm/m-°C
@Temperature 20.0 °C
<= 0.556 µin/in-°F
@Temperature 68.0 °F
Specific Heat Capacity 0.794 J/g-°C0.190 BTU/lb-°F
Thermal Conductivity 266 - 284 W/m-K1850 - 1970 BTU-in/hr-ft²-°F

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CADV60 / 443

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