Porous Forsterite (IEC 60672 Type C-240)
C-240 forsterite is a grade of forsterite. The graph bars on the material properties cards below compare C-240 forsterite to other oxide-based engineering ceramics (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Thermal Properties
Specific Heat Capacity
850 J/kg-K 0.2 BTU/lb-°F
Thermal Conductivity
1.7 W/m-K 1.0 BTU/h-ft-°F
Thermal Expansion
9.0 µm/m-K
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 MHz
6.2
Dielectric Strength (Breakdown Potential)
7.9 kV/mm 0.31 V/mil
Electrical Dissipation At 1 MHz
0.00030
Other Material Properties
Density
2.1 g/cm3 130 lb/ft3
Flexural Strength
40 MPa 5.8 x 103 psi
Common Calculations
Thermal Diffusivity
0.94 mm2/s
Followup Questions
Further Reading
ASTM C242: Standard Terminology of Ceramic Whitewares and Related Products
IEC 60672-3: Ceramic and glass-insulating materials - Part 3: Specifications for individual materials
Springer Handbook of Condensed Matter and Materials Data, W. Martienssen and H. Warlimont (editors), 2005