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Ensinger PEI

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Zircar Refractory Composites RS-1200 Refractory Sheet
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: ZIRCAR Refractory Sheet Type RS-1200 is a high strength composite designed for use as thermo-mechanical and electrical insulation in applications with temperatures as high as 1300°C(2372°F). RS-1200 is a combination of strong reinforcing fibers tightly bound in an alumina ceramic matrix. RS-1200 is completely inorganic and contains no asbestos or RCF fibers. RS-1200 exhibits greater refractoriness and homogeneity than other reinforced alumina matrix composite products and can be readily machined to tight tolerances with conventional carbide tooling.

Information provided by ZIRCAR Refractory Composites, Inc. (ZRCI)

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Physical PropertiesOriginal ValueComments
Density 2.16 g/cc
Loss On Ignition 1.0 - 2.0 %
@Temperature 982 °C
Porosity 31 %
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 85 - 90
Modulus of Rupture 0.0310 GPaparallel to thickness
Compressive Yield Strength 55.0 MPaat 2% compression parallel to thickness
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 7.20e+11 ohm-cm
Surface Resistance 2.30e+11 ohm
Dielectric Strength 71.0 V/mil
Dielectric Breakdown 7300 V1/8 in. thick
Arc Resistance >= 420 sec
 
Thermal PropertiesOriginal ValueComments
CTE, linear 9.00 µm/m-°C
@Temperature 20.0 - 400 °C
Specific Heat Capacity 1.172 J/g-°C
@Temperature 600 °C
Thermal Conductivity 0.620 W/m-K
@Temperature 200 °C
parallel to thickness
 0.650 W/m-K
@Temperature 400 °C
parallel to thickness
 0.660 W/m-K
@Temperature 600 °C
parallel to thickness
 0.680 W/m-K
@Temperature 1000 °C
parallel to thickness
Melting Point 1500 °C
Maximum Service Temperature, Air 1300 °C
Flammability Test 0.00Nil
Shrinkage 0.70 %
@Temperature 1100 °C,
Time 86400 sec
perpendicular to thickness
 1.0 %
@Temperature 1300 °C,
Time 86400 sec
perpendicular to thickness
 
Component Elements PropertiesOriginal ValueComments
Al2O3 82 %
Other 6.0 %
SiO2 12 %
 
Descriptive Properties
ColorWhite

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CZRCI22 / 2885

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