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Machinable Ceramic Materials
Steatite® MgO-SiO2)
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PROPERTY | |
UNITS | |
VALUE | |
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Mechanical | |
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Density | |
gm/cc | |
3.7 | |
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Hardness | |
Rockwell 45N | |
82 | |
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Tensile Strength | |
kpsi | |
28 | |
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Modulus of Elasticity | |
psi x 106 | |
- | |
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Flexural Strength | |
kpsi | |
17-21 | |
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Compressive Strength | |
kpsi | |
80-90 | |
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Poisson's Ratio | |
- | |
- | |
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Fracture Toughness | |
MPa m1/2 | |
4-5 | |
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Electrical | |
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Dielectric Strength | |
ac volts/mil | |
230-447 | |
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Dielectric Constant | |
(at 1 MHz) | |
5.9-6.5 | |
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Volume Resistivity | |
ohm-cm2/cm | |
6x109 | |
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Thermal | |
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Coefficient of Thermal Expansion |
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x10-6/°C | |
6.1-8.0 | |
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Thermal Conductivity | |
W/m°K | |
5 | |
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Specific Heat | |
cal/g°C | |
- | |
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Max Working Temp | |
°C | |
1000 | |
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Shock Resistance | |
°C | |
- | |
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