High purity alumina ceramic crucible
casting ceramic crucible
ceramic boat crucible
casting ceramic crucible
99.7% alumina
• No minimum order value
• Competitive Prices
• High quality materials for hightech use
• Low cost materials for industrial use
We stock high purity alumina laboratory ware including ceramic crucibles, ignition dishes, boats and lids. We can produce custom sizes and other standard ceramic materials on request. (zirconia, mullite, porcelain)
We provide refractory porous crucibles for superalloys and other metals melting, precious and semi-precious melting, glass melting, etc.
Our standard range includes isopressing or injection zirconia crucibles and a range of speciality high alumina refractory grade crucibles with high performance characteristics.
Our wide range of ceramic materials both standard and non-standard should fit your application.
technical performance | 95porcelain ceramic | 99porcelain ceramic | ||
chemistry composition % | al2o3 | 95% | ≥99.7% | |
sio2 | 2% | ≤0.2% | ||
physics performance | durable temperature °C | 1650°C | 1800°C | |
volume density g/cm3 | ≥3.5 | ≥3.85 | ||
dielectric constant | 8.5-10 | 9-10.5 | ||
loss 20°C(tg×10-4) | 3 | 2 | ||
after the surge of loss(tgδ×10-4) | 6 | 4 | ||
bending strength(kg/cm2) | 2800 | 2800 | ||
20°C | 1013 | 1013 | ||
200-300°C | 1012 | 1012 -1011 | ||
500°C | 1010 |
| ||
thermal stability 20°C-800°C-20°C | repeatedly 10 times no cracks | repeatedly 10 times no cracks | ||
application | electricity vacuum devices, device ceramic thick, textile devices, plate, sintering of color phosphor and rare earth of crucible, wear porcelain pieces, grinding pieces, ceramic liner | |||
