Alumina ceramic crucible Zirconia ceramic crucible ceramic tray, ceramic cup, ceramic boat Material: 95% 99% 99,7% Al2O3 or zirconia.
A) wear-resistant b)anti-high temperature c)mechanical seals good
D) anti-corrosion
e) Anti-friction
Characters of corundum/alumina crucible:
1. High purity: Al2O3 larger than 99%, high chemical etching resistance;
2. Temperature tolerance, at 1600°C for long term application, and at 1800°C for short term application
3. Resistant to sudden cold and hot, un-explosive
4. High density of slip casting
Main component: 95 Al2O3properties Density: 3.6 g/cm2 water absorption0
sintering temperature1680 oCphysical propertyHardness: 1500 HV
Rupture strength: 3000 Kg/cm2
pressive strength: 25000 Kg/cm2
thermal property Maximum service temperature: 1450 oC Thermal shock resistance: 220 T (oC)
conductivity: 25-- 14 W/m.k(2 5--300 oC))
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Alumina crucible, crucible