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Zirconia (Zirconium Dioxide)

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Description

Zirconium dioxide, or zirconia, is a white crystalline oxide of zirconium. Its most naturally occurring form is the mineral baddeleyite with a monoclinic crystalline structure. Cubic zirconia is adopant stabilized cubic structured zirconia, and it can be synthesized in various colors for use as a gemstone and a diamond simulant.

Properties

General

Density ρ

5.68 g/cm³ at 20 °C

Mechanical

Elastic modulus E

100 - 250 GPa at 20 °C

Elongation A

32 % at 20 °C

Flexural strength σbend

180 - 1000 MPa at 20 °C

Hardness, Mohs HM

8 - 8.5 [-] at 20 °C

Tensile strength Rm

330 MPa at 20 °C

Yield strength YS

230 MPa at 20 °C

Chemical properties

Element

Weight %

Comment

Zr

90 - 95 %

as Zirconia

Y

4 - 5 %

as Yttria

Other

0.2 %

Titania, Calcium Oxide, Iron Oxide, Sodium Oxide

Al

0.1 - 0.4 %

as Alumina

Si

0.01 - 0.05 %

as Silica

This material data has been provided by Advanced Ceramic Materials.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.