# ESD-Safe Zirconia

ESD zirconia is a grade of zirconia. The graph bars on the material properties cards below compare ESD zirconia 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.

## Mechanical Properties

Compressive (Crushing) Strength

1260 *MPa* 180 *x 10 ^{3} psi*

Elastic (Young's, Tensile) Modulus

200 *GPa* 29 *x 10 ^{6} psi*

Flexural Strength

630 *MPa* 91 *x 10 ^{3} psi*

Fracture Toughness

8.0 *MPa-m ^{1/2}* 7.3

*x 10*

^{3}psi-in^{1/2}## Thermal Properties

Maximum Temperature: Mechanical

500 *°C* 930 *°F*

Maximum Thermal Shock

300 *°C* 570 *°F*

Specific Heat Capacity

400 *J/kg-K* 0.1 *BTU/lb-°F*

Thermal Conductivity

4.3 *W/m-K* 2.5 *BTU/h-ft-°F*

Thermal Expansion

9.5 *µm/m-K*

## Other Material Properties

Density

5.8 *g/cm ^{3}* 360

*lb/ft*

^{3}Electrical Resistivity Order of Magnitude

4.5 *10 ^{x} Ω-m*

## Common Calculations

Stiffness to Weight: Axial

19 *points*

Stiffness to Weight: Bending

33 *points*

Strength to Weight: Axial

19 to 22 *points*

Strength to Weight: Bending

21 to 23 *points*

Thermal Diffusivity

1.8 *mm ^{2}/s*

Thermal Shock Resistance

15 to 19 *points*

## Followup Questions

## Further Reading

Ceramic and Glass Materials: Structure, Properties and Processing, James F. Shackelford and Robert H. Doremus (editors), 2008

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