Introduction to Several Common Crystal Phase Zirconia Products

When we have special requirements for the performance of zirconia ceramics, the crystal structure of zirconia stabilized by different stabilizers and different amounts of the same stabilizer is different. Below are several common crystalline zirconia phases.

1、 Fully Stabilized Zirconia (FSZ):

Adding 8% mole ratio of Yttrium(III) oxide or 15% mole ratio of Calcium oxide can obtain square phase zirconia, so the system will not change, so it is called FullStabilized Zirconia, or square phase zirconia. Mainly used as artificial gemstones, sensing heads, refractory materials, pigments, etc.

2、 Partially Stabilized Zirconia (PSZ):

The monoclinic and square phases exhibit this structure. Due to its excellent thermal conductivity, it is commonly used as a heating and thermal conductive material.

3、 TetragonalZirconiumPolycrystal (TZP) or TTZ (TetragonalToughenedZirconia):

Add 3% mole ratio of Yttrium(III) oxide or about 12% mole ratio of cerium oxide to form tetragonal zirconia, which is particularly suitable for abrasive materials. For example, CZY-95 (density≥ 6.0kg/dm3), CZC-80 (density≥ 6.2kg/dm3), and NanorZr-95B zirconia balls have become benchmark products for grinding media due to their high compressive strength and low wear rate.

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