Application: | Insulators, Electrical Winding Insulation, Electrical Base, Shell, Insulating Varnish, Switch Baseplate |
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Type: | Insulation Film |
Chemistry: | High Thermal Conductivity |
Material: | Eryllium Oxide |
Thermal Rating: | 1800 Degree C |
Maximum Voltage: | <10KV |
Samples: |
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Customization: |
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Item | The test conditions | Units and symbols | Indicators |
Bulk density | g/cm 3 | ≥2.85 | |
Beryllium oxide content | % | ≥99 | |
Air tightness | Passed | ||
Fluid permeability | Passed | ||
Flexural strength | MPa | ≥140 | |
Thermal shock resistance | Passed | ||
Linear expansion coefficient | 20ºC-500ºC | ×10 -4 /ºC | 7-8.5 |
Coefficient of thermal conductivity | 40ºC | W/m·k | ≥250 |
Distribution constant | 1MHz 20ºC | 6.5-7.5 | |
10GHz 20ºC | 6.5-7.5 | ||
Dielectric loss tangent value | 1MHz 20ºC | ×10 -4 | ≤4 |
10GHz 20ºC | ×10 -4 | ≤8 | |
Volume resistivity | 100ºC | Ω.cm | ≥10 13 |
300ºC | Ω.cm | ≥10 10 | |
Strike strength | DC | KV/mm | ≥15 |
Chemical stability | 1:9HCl | ug/cm 2 | ≤0.3 |
10% NaOH | ug/cm 2 | ≤0.2 |
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