ESD-Safe Silicon Carbide
ESD silicon carbide is a grade of silicon carbide. The graph bars on the material properties cards below compare ESD silicon carbide to other non-oxide 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.
Mechanical Properties
Compressive (Crushing) Strength
3900 MPa 570 x 103 psi
Elastic (Young's, Tensile) Modulus
420 GPa 60 x 106 psi
Flexural Strength
490 MPa 71 x 103 psi
Fracture Toughness
3.9 MPa-m1/2 3.6 x 103 psi-in1/2
Poisson's Ratio
0.14
Thermal Properties
Maximum Temperature: Mechanical
500 °C 930 °F
Specific Heat Capacity
750 J/kg-K 0.18 BTU/lb-°F
Thermal Conductivity
140 W/m-K 82 BTU/h-ft-°F
Thermal Expansion
4.5 µm/m-K
Other Material Properties
Density
3.2 g/cm3 200 lb/ft3
Electrical Resistivity Order of Magnitude
3.3 10x Ω-m
Common Calculations
Stiffness to Weight: Axial
73 points
Stiffness to Weight: Bending
79 points
Strength to Weight: Axial
18 to 34 points
Strength to Weight: Bending
24 to 38 points
Thermal Diffusivity
60 mm2/s
Thermal Shock Resistance
6.9 to 18 points
Followup Questions
Further Reading
Properties of Silicon Carbide, Gary L. Harris (editor), 1995
Silicon Carbine Ceramics: Fundamental and Solid Reaction, Shigeyuki Somiya and Yoshizo Inomata (editors), 1991
Handbook of Refractory Carbides and Nitrides: Properties, Characteristics, Processing and Applications, Hugh O. Pierson, 1996
Ceramics and Composites: Processing Methods, Narottam P. Bansal and Aldo R. Boccaccini (editors), 2012
Springer Handbook of Condensed Matter and Materials Data, W. Martienssen and H. Warlimont (editors), 2005