Mo boats made for sintering technical ceramics and single crystal with high-purity,high-density,thermal stability property.
Mo boats made for sintering technical ceramics and single crystal with high-purity,high-density,thermal stability property.
Crystal growth is a major stage of a crystallization process, which typically follows an initial stage of either homogeneous or heterogeneous (surface catalyzed) nucleation.
Crystal growth is a significant step for the semiconductor industry as well as for optical applications and solar industries. Sapphire single crystals are used for high power laser optics, high pressure components and substrates for LEDs. Aluminum Nitride(AlN) single crystals are the principal components for fabricating UV-LEDs and laser diodes (LDs).
We can produce many varieties of tungsten and molybdenum crucibles for single crystal growing process as a high temperature durability container in this application with its best properties.
W crucibles Mo crucibles Customized crucibles Lids Dies Heating shields
1. Physical and chemical properties
(1) Density: 9.5~10.2g /cm3
(2) Surface roughness: < 3.2
(3) Purity:Mo 99.97%(min.)
(4) Application temperature environment:1200~1800
(5) Types: made of Mo, TZM,MLR and tungsten in Riveted,deep-drawn, or folded type.
2. Specifications:
1)Dimensions and tolerances Unit:mm
Delivery condition | Specification | Tolerance | Thickness | Roughness | ||
Diameter | Height | Diameter | Height | |||
Sintering | 10~500 | 10~750 | ±3.0 | ±3.0 | 8~20 |
|
Final Finished | 10~450 | 10~550 | ±0.5 | ±1.0 | 7~18 | <3.2 |
Special sizes can be manufactured based on customers' requirements
3. Manufacturing process and equipment
Item | Process | Equipment | Quality Check |
1 | Powder purified | Purified furnace | GDMS |
2 | Isostatic pressing | Isostatic pressing machine | Measurement of rough-processed |
3 | IF forging | High-accuracy forging machine | Dimension measurements for product |
4 | IF sintering | High temperature vacuum sintering furnace | Dimension measurements for product |
5 | Final machining | High-accuracy turning machine | Surface quality/ roughness and density |
6 | Package |
| Quality Test Report |
4. Applications
Molybdenum has a higher melting point 2620, lower than tungsten. Similar with tungsten crucible, the Mo sintering boat is also widely applied in high temperature environment such as sintering furnace to load the technical ceramics and single crystal for sintering and growing, rare earth melting, sintering boats. The working temperature of Mo boats can reach to 1800. For furnace, high-purity, high-density, thermal stability Mo crucible with other features of exact measurement and smooth surface has decisive influence on the success of quality control for material sintering process.
5. Advantage of our Molybdenum boats:
- specially precise forming technology for boats body
- uniform grain with densified microstructure ensures longer life time
- ready for use parts with precise machining tolerance.
