Alumina Crucible
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Payment
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Origin
China Mainland
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Minimum Order
15
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Packing
Pieces
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- Description
Product Detail
Alumina Crucible specifications
AL2O3 | 99% |
MgO | 0.8% |
Na2O | <0.15% |
SiO2 | <0.018% |
Y2O3 | <0.02% |
Fe2O3 | <0.02% |
TiO2 | <0.006% |
CaO | <0.005% |
Specifications of Alumina crucible
Items | Test condition | Unit | |
Average grain size | µm | 3 - 5 | |
Density | g/cm3 | =3.85 | |
Water absorption | % | 0 | |
Hardness (Vickers) | HV0.5 | =1900 | |
Flexual strength | Distance between bending points 80mm | MPa | =340 |
Compressing strength | MPa | 3600 | |
Linear thermal expanding coefficient | 20-500? | 1x106 mm/? | 6.5 – 7.5 |
20-800? | 6.5 - 8.0 | ||
Thermal conductivity | 20? | W/(m.K) | =24 |
Dielectric strength | KV/mm | =12 | |
Volume resistivity | 300? | O.cm | =1011 |
Dielectric constant | 1MHz | 9.3-10.6 | |
Dielectric loss | 1MHz | 3x10-4 | |
Thermal shock resistance | 850? | times | =7 |
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