Momentive Performance Materials PolarTherm® PT620 Boron Nitride (BN) Powder

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Momentive Performance Materials PolarTherm® PT620 Boron Nitride (BN) Powder
Categories:	Ceramic; Nitride; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	High Density BN Agglomerate 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 Properties	Metric	English	Comments

Density	2.25 g/cc	0.0813 lb/in³	Theoretical
Particle Size	16 - 30 µm	16 - 30 µm	average
Specific Surface Area	<= 10 m²/g	<= 10 m²/g

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	11	11

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm
Dielectric Constant	3.9	3.9
Dissipation Factor	<= 0.00020 @Frequency 1e+6 Hz	<= 0.00020 @Frequency 1e+6 Hz

Thermal Properties	Metric	English	Comments
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-°C	0.190 BTU/lb-°F
Thermal Conductivity	266 - 284 W/m-K	1850 - 1970 BTU-in/hr-ft²-°F

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