Zirconia (ZrO2)

Description

Zirconia grades are various. They differentiate from each other by the nature of the stabilising agent which is used. In its pure form, zirconia is not stable. Magnesia-partially-stabilised zirconia (MgO-PSZ) and yttria-partially stabilised zirconia (Y-TZP) in particular offer an outstanding resistance to mechanical shocks as well as to flexural load, because of their high fracture toughness and relative “ elasticity ”. These two zirconias are advanced ceramics of choice for severe mechanical applications. Other grades in fully stabilised composition exist and are mostly used for high-temperature applications. Selection of materials Microcertec offers those two types of zirconias that are mostly requested on the market, in pressed and extruded grades : magnesia-partially-stabilised zirconia (MgO-PSZ) yttria-partially-stabilised zirconia (Y-TZP) Properties MgO-PSZ and Y-TZP zirconias have the following features : high density high flexural strength (> 500 MPa for Mgo-PSZ and >...

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77090 Collegien - France

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