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Elmet Technologies

Silicon Carbide, Reaction-Bonded, SiSiC
Categories: Ceramic; Carbide; Ceramic Matrix Composite

Material Notes: Reaction bonded silicon carbide consists of SiC particles in a matrix of excess silicon. It is made by reaction of molten silicon with carbon or carbon + SiC to produce the silicon matrix composite.

Key attributes include wear/abrasion resistance, low density, ease of forming complex shapes with tight tolerances, and resistance to corrosion, oxidation, and high temperatures. These attributes lead to its application in furnace/kiln components, tribological uses/wear components, seals, nozzles, etc.

Information assembled by MatWeb from proprietary grades in our data collection.

Key Words: RBSC
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Physical PropertiesMetricEnglishComments
Density 2.90 - 3.10 g/cc0.105 - 0.112 lb/in³
Water Absorption 0.0 %0.0 %
 
Mechanical PropertiesMetricEnglishComments
Knoop Microhardness 1000 - 1500
@Load 2.00 kg
1000 - 1500
@Load 4.41 lb
kg/mm2
Modulus of Elasticity 350 - 400 GPa50800 - 58000 ksi
Flexural Strength 150 - 450 MPa21800 - 65300 psi
Compressive Strength 1500 - 2500 MPa218000 - 363000 psi
Poissons Ratio 0.17 - 0.200.17 - 0.20
Fracture Toughness 3.00 - 5.00 MPa-m½2.73 - 4.55 ksi-in½
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1000 ohm-cm1000 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 2.90 - 5.00 µm/m-°C
@Temperature 25.0 - 100 °C
1.61 - 2.78 µin/in-°F
@Temperature 77.0 - 212 °F
Specific Heat Capacity 0.700 J/g-°C0.167 BTU/lb-°F
Thermal Conductivity 100 - 180 W/m-K694 - 1250 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 1000 - 1400 °C1830 - 2550 °F
 
Descriptive Properties
MatrixSi
Particle ReinforcementSiC70-80 vol% typical

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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BCSC2BC / 133381

Ensinger PEI

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