 
 
Recently, crucibles used in sapphire furnace includes tungsten crucible, molybdenum crucible and iridium crucible. Practically speaking, the polution of iridium crucible is much less than tungsten and molybdneum crucible, but the cost is much higher.
Tungsten crucible and molybdenum crucible are main products for sapphire growth. Tungsten and molybdenum crucible are used as heating element in the process of sapphire crystal growth. For the property of high melting point of tungsten crucible and molybdenum crucible, tungsten and molybdenum are better choice for the sapphire growth for they will not melt with the crystal and can assure the purity and high quality of the crystal, which can be produced high quality LED material
Specifications for tungsten and molybdenum crucible:
| Material |
Density |
Specifications |
| W 99.95% |
≥18.3g/cc (Sintered) |
Diameter：70-550mm; Height：50-700mm |
| Mo 99.95% |
≥9.8g/cc? (Sintered) |
Diameter：70-550mm; Height：50-700mm |
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If there is any other question refer to molybdenum crucible for sapphire growth furnace, please feel free to contact us through the following methods.
Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/ +86 5925129595
Fax: +86 5925129797
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