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Item # SC-30, 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

Specifications

Material

Carbides


Mechanical Properties

Density

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3.15 g/cc

Average Crystal Size

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5 Microns

Water Absorption

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0 %

Gas Permeability

0

Color

Black

Flexural Strength (MOR) at 20ºC

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480 MPa
70 x 103
psi

Elastic Modulus at 20ºC

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410 GPa
59 x 103
psi

Poisson's Ratio at 20ºC

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0.21

Compressive Strength at 20ºC

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3500 MPa
507
psi

Knoop Hardness at 1000gm

27.5 GPa
2800
kg/mm²

Fracture Toughness K(Ic)

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4 to 5 MPa m1/2


Thermal Properties

Thermal Conductivity at 20ºC

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150.0 W/m-ºK

Coefficient of Thermal Expansion at 25-1000ºC

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4.4 x 10-6 Per ºC

Thermal Shock Resistance ΔTc

300 ºC

Maximum Use Temperature

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1750 ºC


Electrical Properties

Volume Resistivity at 25ºC

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>105 ohm-cm

Volume Resistivity at 500ºC

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<103 ohm-cm

Volume Resistivity at 1000ºC

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<103 ohm-cm


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