Alumina toughness Zirconia (ZTA)

Characteristics

Item

Value

Unit

Mechanical Characteristics

Colour

White

Density

4.2

g/cm³

Bending Strength

550

MPa

Compressive Strength

2,900

MPa

Elastic Modulus

360

GPa

Fracture Toughness

5~6

MPam^1/2

Weber Coefficient

15

M

Vickers Hardness

1,600

HV0.5

Thermal Characteristics

Coefficient of Line Thermal Expansion

8.3

10^-6K^-1

Thermal Conductivity

27

W/mK

Thermal Shock Resistance (Put in Water)

300

?T°C

Max Working Temperature

1,500

°C

Electrical Characteristics

Volume Resistance at 20°C

>10¹⁴

?cm

Dielectric Strength

9×10⁶

V/m

Dielectric Constant

10.6

ε_r

One MHZ Dielectric Loss Angle at 20°C

0.0005

tanδ

Chemical Characteristics

Nitric Acid (60%) 90°C

-

WTLossmg/cm²/day

Sulphuric Acid (95%) 95°C

-

Caustic Soda (30%) 80°C

-