Properties & Characteristics

Typical Material Properties*

	Average
Density	0.9 g/cc
Compressive Strength	855 psi
Thermal Conductivity
- Out of Plane	245 W/mK
- In Plane	70 W/mK
Total Porosity	61%
Open Porosity (% of total)	95%
Avg. Pore Diameter	350 microns
* Developmental stage material, properties may vary.

CTE

Avg Temperature Range	In-Plane	Out-of-Plane
323 to 423°K/50 to 150°C	1.02	-1.07
423 to 573°K/150 to 300°C	1.91	-0.02
573 to 873°K/300 to 600°C	2.64	0.73
873 to 1073°K/600 to 800°C	3.26	1.31
Values in ppm/°K or ppm/°C

CTE - See Charts below

Samples were measured on a Netzsch Model 402C Dilatometer. Up-heat rate was 10°K/min. in argon atmosphere. The figures show that both POCO Thermal Management Materials expand differently in the growth (z-axis) compared to the plane of the billet (xy plane). The charts show Expansivity data, which gives an accurate representation of the material expansion behavior over temperature range. The table of CTE values is taken as the slope of the expansivity curves between the temperature of interest and the reference temperature (30°C).

Additional Information

Entegris

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Quality

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Literature

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