Australia Tel: +61 (0)2 4389 6191
Indonesia Tel: +62 21 2278 3377
New Zealand Tel: +64 (0)7 850 2610
South Africa Tel: +27 (0)10 900 2055
Zirconia Toughened Alumina (ZTA)
Australia Tel: +61 (0)2 4389 6191
Indonesia Tel: +62 21 2278 3377
New Zealand Tel: +64 (0)7 850 2610
South Africa Tel: +27 (0)10 900 2055
Description
The main advantage of Zirconia Toughened Alumina (ZTA) from HMA Wear Solutions is the additional strength and toughness over Alumina, combined with a lower cost. The combination of aluminium oxide and zirconium oxide provides for much greater strength, toughness, hardness, and wear resistance than Alumina alone. The 20% to 30% increase in strength often provides the design criteria needed at a much lower cost than using a pure zirconia product.
A process called transformation toughening is the phenomenon that increases the fracture toughness of ZTA from HMA Wear Solutions. When placed under stress, the zirconia particles transform their crystal structure from a tetragonal to a monoclinic shape, resulting in a volume expansion that compresses the surrounding crack in the Alumina matrix. ZTA is ideal for any application where structural strength is needed that exceeds the standard properties of Alumina.
