# 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 10 ^{3} psi*

Elastic (Young's, Tensile) Modulus

420 *GPa* 60 *x 10 ^{6} psi*

Flexural Strength

490 *MPa* 71 *x 10 ^{3} psi*

Fracture Toughness

3.9 *MPa-m ^{1/2}* 3.6

*x 10*

^{3}psi-in^{1/2}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/cm ^{3}* 200

*lb/ft*

^{3}Electrical Resistivity Order of Magnitude

3.3 *10 ^{x} 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 *mm ^{2}/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