Properties

Units

AM 998 Aluminum Oxide

Mechanical

Color

-

ivory

Density

g/cm³

3.92

Water Absorption

%

0.00

Flexural Strength

MPa@room temp. (R.T.)

405

Compressive Strength

MPa@R.T.

3190

Hardness

GPa

14.1-15.2

Thermal

Maximum Use Temperature

°C

1820

Thermal Shock Resistance

ΔT(°C)

245

Specific Heat

cal/g°C@R.T.

0.22

Thermal Conductivity

W/m°K@R.T.

31.0

Coefficient of Linear Thermal Expansion

10^-6/°C (≈25°C through ≤1000°C)

7.9

Electrical

Volume Resistivity

Ώcm@R.T.

>10¹⁵

Dielectric Constant

1MHz@R.T.

9.8