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ITEM | UNIT | AL2O3(95-97) | AL2O3(99) |
DESITY | g/cm3 | 3.7 | 3.85 |
FLEXURAL STRENGTH | Mpa | 300 | 340 |
COMPRESSIVE STRENGTH | Mpa | 3400 | 3600 |
MODULUS OF ELASLICITY | Gpa | 350 | 380 |
IMPACT RESISTANCE | Mpa m(1/2) | 4 | 5 |
WEIBULL MOUDULUS | m | 10 | 10 |
VICKERS HARDNESS | HV0.5 | 1200 | 1300 |
THERMAL EXPANSION COEFFICENT | 10(-6)K(-1) | 5.0-8.3 | 5.4-8.3 |
THERMAL CONDUCTIVITY | W/mK | 24 | 27 |
THERMAL SHORK RESISTANCE | Δ T℃ | 250 | 270 |
MAXIMUM USE TEMPERATURE | ℃ | 1600 | 1650 |
VOLUME RESISTIVITY AT 20℃ | Ω | ≥10(14) | ≥10(14) |
DIELECTRIC CONSTANT | KV/mm | 20 | 25 |
OPEN POROSITY | % | 0 | 0 |
DIELECTRIC CONSTANT | |||
DIELECTRIC LOSS ANGLE | Tanб | 0.001 | 0.001 |
ITEM | UNIT | AL2O3(95-97) | AL2O3(99) |
DESITY | g/cm3 | 3.7 | 3.85 |
FLEXURAL STRENGTH | Mpa | 300 | 340 |
COMPRESSIVE STRENGTH | Mpa | 3400 | 3600 |
MODULUS OF ELASLICITY | Gpa | 350 | 380 |
IMPACT RESISTANCE | Mpa m(1/2) | 4 | 5 |
WEIBULL MOUDULUS | m | 10 | 10 |
VICKERS HARDNESS | HV0.5 | 1200 | 1300 |
THERMAL EXPANSION COEFFICENT | 10(-6)K(-1) | 5.0-8.3 | 5.4-8.3 |
THERMAL CONDUCTIVITY | W/mK | 24 | 27 |
THERMAL SHORK RESISTANCE | Δ T℃ | 250 | 270 |
MAXIMUM USE TEMPERATURE | ℃ | 1600 | 1650 |
VOLUME RESISTIVITY AT 20℃ | Ω | ≥10(14) | ≥10(14) |
DIELECTRIC CONSTANT | KV/mm | 20 | 25 |
OPEN POROSITY | % | 0 | 0 |
DIELECTRIC CONSTANT | |||
DIELECTRIC LOSS ANGLE | Tanб | 0.001 | 0.001 |













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