What is ZTA ceramic?

ZTA ceramic plate, or call it ZTA zirconia toughened alumina ceramic tiles, ZTA bricks, ZTA blocks,  Al2O3+ZrO2 Ceramic Tile, Lining Brick, Hex tile, ZTA Ceramic Tile. They are with very good wear resistance and can be used in many industries.

Zirconia Toughened Alumina(ZTA) is high purity alumina mixed with zirconia. It makes a touther, stronger material. It combines the advantages of partially stabilized zirconia(PSZ) and alumina. Almost as hard as alumina, almost as strong as PSZ. From 3 to 10 times more abrasion resistant than high purity alumina. The content ratio between zirconia and alumina we make is 20%:80%, 25%:75%.

The main advantage of Zirconia Toughened Alumina (ZTA) is the additional strength and toughness over alumina with a lower cost than zirconia.

The combination of aluminum oxide and 10-20% zirconium oxide provides a much higher strength, toughness, hardness and wear resistance than alumina alone.

The 20-30% increase in strength often provides the design criteria needed at a much lower cost than using zirconia.

A process called transformation toughening is the phenomenon that increases the fracture toughness of ZTA. When placed under stress, the zirconia particles change their crystal structure from a tetragonal to a monoclinic structure, causing a volume expansion that compresses the surrounding crack in the alumina matrix.

ZTA should be considered for any application where structural strength is needed that exceeds the standard alumina properties.

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