All Categories > Industrial Products > Cast & Fired Ceramics > Dense Ceramics - Alumina, Mullite, & Zirconia (3200ºF - 3600ºF Range) > Item # AD-995  
    Printable Page     Email Email This Page     Save To Favorites Save To Favorites

Item # AD-995, 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

Alumina


Mechanical Properties

Density

View
3.90 g/cc

Average Crystal Size

View
6 Microns

Water Absorption

View
0 %

Gas Permeability

0

Color

Ivory

Flexural Strength (MOR) at 20ºC

View
379 MPa
55 x 103
psi

Elastic Modulus at 20ºC

View
370 GPa
54 x 103
psi

Poisson's Ratio at 20ºC

View
0.22

Compressive Strength at 20ºC

View
2600 MPa
377
psi

Knoop Hardness at 1000gm

14.1 GPa
1440
kg/mm²

Rockwell Hardness at 45 N

83

Tensile Strength at 25ºC

View
262 MPa
38 x 103
psi

Fracture Toughness K(Ic)

View
4 to 5 MPa m1/2


Thermal Properties

Thermal Conductivity at 20ºC

View
30.0 W/m-ºK

Coefficient of Thermal Expansion at 25-1000ºC

View
8.2 x 10-6 Per ºC

Specific Heat at 100ºC

View
880 J/kgºK

Thermal Shock Resistance ΔTc

200 ºC

Maximum Use Temperature

View
1750 ºC


Electrical Properties

Dielectric Strength

View
8.7 ac-kV/mm
220
ac V/mil

Dielectric Constant at 1 MHz & 25ºC

View
9.7

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

View
0.0001

Volume Resistivity at 25ºC

View
>1014 ohm-cm

Volume Resistivity at 500ºC

View
2 x 1010 ohm-cm

Volume Resistivity at 1000ºC

View
2 x 106 ohm-cm


Wear Properties

Impingement

0.47


 MORE IMAGES 

·  Cast & Fired Ceramics-2

·  Cast & Fired Ceramics-3

·  Cast & Fired Ceramics-4

·  Cast & Fired Ceramics-5


twitterfacebookFlickrLinked InSite created by ThomasNet Web Solutions and powered by Navigator Platform
Foundry Service & Supplies, Inc. | Heat And Corrosion Resistant Industrial Insulation & Construction Materials