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Zirconium Oxide(ZrO2)

2272-202306301054256289.jpgZirconia ceramic is a high-performance material with outstanding mechanical and chemical properties. Compared to other technical ceramics, it has higher fracture toughness, reducing brittleness while maintaining superior hardness, strength, and wear resistance at room temperature. These advantages enhance the durability and lifespan of components.


Mascera specializes in stabilized zirconia ceramics, incorporating different stabilizers to optimize performance. Yttria-stabilized zirconia (Y-PSZ) is stabilized with yttria (Y2O3), while magnsia-stabilized zirconia (Mg-PSZ) uses magnesia (MgO), each offering distinct properties for diverse industrial applications.



Yttrium Stabilized Zirconia(Y-PSZ)


Main Properties

  • High fracture toughness and crack resistance.

  • Superior mechanical strength and wear resistance.

  • Low thermal conductivity.

  • Thermal expansion similar to steel.

  • High biocompatibility.

Typical Applications

  • Valve balls, valve seats

  • Ceramic blades

  • Ceramic plunger

  • Ceramic positioning pins

  • Ceramic bearing balls

  • Ceramic mrinding media


Magnesium Stabilized Zirconia (Mg-PSZ)


Main Properties

  • Even higher fracture toughness and impact resistance.

  • Superior mechanical strength and wear resistance.

  • Outstanding thermal shock resistance.

  • Excellent stability in high-temperature environments.

  • Excellent corrosion resistance in acids&alkalis.

  • Low thermal conductivity.

Typical Applications

  • Valve balls, valve seats, sealing rings, etc., for high-load and high-temperature environments.

  • High-temperature furnace linings.

  • Glass melting furnaces.

  • Continuous casting nozzles and crucibles



Properties Data


Item

Unit

Y-PSZ

Mg-PSZ
Stabilizer-
Y2O3MgO

Color

-

White

Yellow

Density

g/cm3

5.95-6.05

5.7

Hardness (HV0.5)

-

1300

1100

Young's modulus

Gpa

200

250

Fracture toughness

Mpa.m1/2

8.5

6-7

Flexural Strength @25℃

Mpa

900

500

Compressive Strength @25℃

Mpa

2200

2000

Thermal Conductivity @25℃

W/mk

2.2

2.2

Thermal Expansion Coefficient

 (25-1000℃)

10-6/℃

10.3

10.3

Thermal Shock Resistance

△T(℃)

280-350

450

Max. Working Temperature

850

2000

Dielectric Strength

Kv/Mm

≥9

13

Electrical Resistivity @25℃

Ω.Cm

>1013

>1014

Dielectric Constant

(@1MHz, 25℃)

-

29

28

Dielectric Loss (Tan Delta)
(@1MHz, 25℃)

-

0.002

0.002

Note: above data is for reference only, the values may vary according to product configuration, geometry and manufacturing process.


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