Zirconia (ZrO2) - Applications of Zircalon Ceramics

Image Credits: shutterstock.com/pan_kung

Zircalon is a recently added material to our portfolio and is the toughest of all monolith ceramics. It is a partially stabilised zirconia characterised by very high strength and toughness giving it excellent wear resistance as well as excellent corrosion resistance.

Applications of Zircalon

Zircalon is used in applications typically in the metal forming industry as weld location pins for resistance welding of captive nuts on sheet metal and is available in two grades, Zircalon 5 and Zircalon 10. Zircalon 10 is the stronger and tougher of the two grades and possesses better impact resistance.

Zircalon 5 - Mechanical, Thermal and Electrical Properties

The table below lists typical mechanical, thermal and electrical property data for Zircalon 5.

Table 1. Mechanical, thermal and electrical property data for Zircalon 5.

Property

Value

Unit

3 point RT Modulus of Rupture
(Specimen 3 x 3 x 50mm, span 19.05mm)

1000

MPa

Weibull Modulus

15

-

RT Unit Tensile Strength

500

MPa

RT Compressive Strength

>2000

MPa

RT Young's Modulus of Elasticity

205

GPa

RT Hardness (HRA)

91

-

RT Hardness (Vickers Hv0.3)

1350

Kg/mm2

Fracture Toughness K1C

8.0

MPa.m1/2

Density

6.13

g/cc

Porosity

0

%

Thermal Expansion Coefficient (0-1200°C)

10.0x10-6

K-1

RT Thermal Conductivity

2.0

W/m/K

Thermal Shock Resistance

250

ΔT°C quenched in cold water

Maximum Use Temperature

1000

°C

RT Electrical Resistivity

109

ohm m

Zircalon 10 - Mechanical, Thermal and Electrical Properties

The table below lists typical mechanical, thermal and electrical property data for Zircalon 10.

Table 2. Mechanical, thermal and electrical property data for Zircalon 10.

Property

Value

Unit

3 point RT Modulus of Rupture
(Specimen 3 x3 x 50mm, span 19.05mm)

1200

MPa

Weibull Modulus

15

-

RT Unit Tensile Strength

550

MPa

RT Compressive Strength

>2000

MPa

RT Young's Modulus of Elasticity

205

GPa

RT Hardness (HRA)

91

-

RT Hardness (Vickers Hv0.3)

1350

Kg/mm2

Fracture Toughness K1C

10.0

MPa.m1/2

Density

6.05

g/cc

Porosity

0

%

Thermal Expansion Coefficient (0-1200°C)

10.0x10-6

K-1

RT Thermal Conductivity

2.0

W/m/K

Thermal Shock Resistance

250

ΔT°C quenched in cold water

Maximum Use Temperature

1000

°C

RT Electrical Resistivity

109

ohm m

Corrosion Resistance of Zircalon

In addition to this outstanding property data, Zircalon also has excellent resistance to corrosion, often required for applications in the chemical and process industries.

The table below show the corrosion behaviour of Zircalon in various acids and alkalis.

Table 3. Zircalon corrosion behaviour in acids and alkalis.

Acid/Alkali

Conc. %

Temp.

Exposure time / hrs

Reaction

Acetic Acid

100

Boiling

100

None

Benzoic Acid

100

Boiling

100

None

Formic Acid

100

Boiling

100

None

Hydrochloric Acid

33

Boiling

100

None

Hydrofluric Acid

100

Boiling

100

Strong

Nitric Acid

69

Boiling

100

Weak

Phosphoric Acid

100

Boiling

100

Weak

Sulphuric Acid

98

Boiling

100

None

Ammonium Chloride

98

Boiling

100

None

Potassium Chloride

100

Boiling

100

None

Sodium Chloride

100

Boiling

100

None

Sodium hydroxide

50

Boiling

100

None

Summary on Zircalon Ceramic

The successful integration of ceramics into engineering systems requires close collaboration between you, the end-user, and ourselves, the material suppliers. Our Technical Department can be contacted to discuss your requirments in detail and assist in exploiting the significant advantages which Zircalon has to offer.

In addition, please visit International Syalons for guides on designing with ceramics and more property data comparing Zircalon with other engineering ceramics.

This information has been sourced, reviewed and adapted from materials provided by Internatrional Syalons.

For more information on this source, please visit International Syalons.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    International Syalons. (2019, February 07). Zirconia (ZrO2) - Applications of Zircalon Ceramics. AZoM. Retrieved on July 16, 2019 from https://www.azom.com/article.aspx?ArticleID=4507.

  • MLA

    International Syalons. "Zirconia (ZrO2) - Applications of Zircalon Ceramics". AZoM. 16 July 2019. <https://www.azom.com/article.aspx?ArticleID=4507>.

  • Chicago

    International Syalons. "Zirconia (ZrO2) - Applications of Zircalon Ceramics". AZoM. https://www.azom.com/article.aspx?ArticleID=4507. (accessed July 16, 2019).

  • Harvard

    International Syalons. 2019. Zirconia (ZrO2) - Applications of Zircalon Ceramics. AZoM, viewed 16 July 2019, https://www.azom.com/article.aspx?ArticleID=4507.

Ask A Question

Do you have a question you'd like to ask regarding this article?

Leave your feedback
Submit