Toughened Alumina

By Ceramic Oxide Fabricators Australia

Zirconia Toughened Alumina (ZTA) is high purity alumina mixed with zirconia, making a tougher, stronger material.

Zirconia Toughened Alumina:

  • Combines the advantages of partially stabilised zirconia (PSZ) and of alumina
  • Almost as hard as alumina
  • Almost as strong as PSZ
  • From 3 to 10 times more abrasion resistant than high purity alumina.

Mechanical Properties

Fracture Toughness: Klc - 7 MPa.m1/2
Hardness: 15 GPa
Flexural Strength: 910 MPa
Elastic Modulus: 290 GPa
Thermal Expansion: 9 x 10-6 °C-1

Ordering Information

ZTA is available in plate, rod, disc and bar. Please enquire about precision shapes and components.