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Item # YTZP, Dense Ceramics - Alumina, Mullite, & Zirconia (3200ºF - 3600ºF Range)



Fully Dense Porcelain, Mullite, Alumina, Zirconia, Silicon Carbide, and Tungsten Carbide are gas-tight high-fired ceramics capable of withstanding operating temperatures of 2550ºF (1400ºC) to 3182ºF (1750ºC). These compositions are available in the forms of extruded and cast tubing, rods, plates, fish spine beads, lab ware, and custom molded shapes.




Specifications  · Mechanical Properties  · Thermal Properties  · Electrical Properties  · Wear Properties

Specifications

Material

Zirconia


Mechanical Properties

Density

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6.02 g/cc

Average Crystal Size

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1 Microns

Water Absorption

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0 %

Gas Permeability

0

Color

Ivory

Flexural Strength (MOR) at 20ºC

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900 MPa
130 x 103
psi

Elastic Modulus at 20ºC

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210 GPa
30 x 103
psi

Poisson's Ratio at 20ºC

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0.23

Compressive Strength at 20ºC

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2500 MPa
363
psi

Knoop Hardness at 1000gm

12.7 GPa
1300
kg/mm²

Rockwell Hardness at 45 N

81

Fracture Toughness K(Ic)

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13 MPa m1/2


Thermal Properties

Thermal Conductivity at 20ºC

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2.2 W/m-ºK

Coefficient of Thermal Expansion at 25-1000ºC

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10.3 x 10-6 Per ºC

Specific Heat at 100ºC

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400 J/kgºK

Thermal Shock Resistance ΔTc

350 ºC

Maximum Use Temperature

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1500 ºC


Electrical Properties

Dielectric Strength

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9.0 ac-kV/mm
228
ac V/mil

Dielectric Constant at 1 MHz & 25ºC

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29.0

Dielectric Loss (tan delta) at 1 MHz & 25ºC

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0.0010

Volume Resistivity at 25ºC

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>1013 ohm-cm

Volume Resistivity at 500ºC

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2 x 104 ohm-cm

Volume Resistivity at 1000ºC

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<103 ohm-cm


Wear Properties

Impingement

0.20

Rubbing

0.20


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