Zirconia Toughened Alumina (ZTA)

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WEA-DS-0026 Zirconia Toughened Alumina

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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.

Contact HMA Wear Solutions today to find the right solution for your project or site.