High-Temperature Corundum Mullite Crucible
Introduction:
Sapphire mullite crucible belongs to the field of refractory materials technology. It is sequentially processed through batching, forming, and firing. It is made from ingredients such as electrically fused mullite, plate-like sapphire, alumina powder, silicon powder, calcium aluminate cement, and sodium hexametaphosphate, using the self-flow casting method for molding, and then obtained after demoulding and drying followed by high-temperature firing.
Advantages:
- Sapphire mullite crucibles can withstand extremely high temperatures and are typically stable for use at temperatures above 1500°C.
- They exhibit excellent chemical stability and are not easily corroded or eroded by chemical substances.
- They have a long service life and are not easily worn or damaged.
- Both sapphire and mullite are inert materials, so they do not contaminate samples, ensuring the purity of the heat treatment process.
- They have good thermal conductivity, enabling uniform heating and cooling of samples, thereby improving the effectiveness of heat treatment.
Product Parameters:
| Chemical Composition | AL₂O₃ | ％ | 90.5 |
| Sio₂ | ％ | 8.3 | |
| Fe₂o₃ | ％ | 0.1 | |
| Apparent Porosity | ％ | 18 | |
| Bulk Density | g/m³ | 2.83 | |
| Room Temperature Compressive Strength | Mpa | 91 | |
| Room Temperature Flexural Strength | Mpa | 12.1 | |
| Load Softening Starting Temperature (0.2Map) | ℃ | 1690 | |
| Thermal Shock Stability (Water Cooling at 1100°C) | Time | ﹥15 | |
| Refractoriness | ℃ | ≥1790 | |
Specifications of the Mullite Crucibles We Offer:
| Corundum Mullite Crucible Specification Table (UoM：mm) | |||
| 160×160×50 | 190×190×35 | 102×102×37 | 320×230×60 |
| 150×150×100 | 190×190×100 | 160×105×55 | 240×240×30 |
| 320×320×80 | 250×250×105 | 330×245×130 | 330×240×90 |
| The crucibles have differences in flat and notched mouths. In addition to the specifications mentioned above, we also offer various sizes. For detailed information, please consult our professional customer service personnel! | |||
Sapphire Mullite Crucible Images（300×200×113mm）:
Applications:
Sapphire mullite crucibles are widely used in the fields of advanced ceramics, electronic ceramics, functional ceramics, heat treatment, medium-frequency induction furnaces, metal forging, piezoelectric ceramics, electrical ceramics, metal ceramics, magnetic materials, rare earth phosphors, long afterglow luminescent materials, high-density hard alloys, positive and negative materials for lithium batteries, lithium cobaltate, cobalt oxide, strontium carbonate, lithium iron phosphate, chemical powders, nano-iron oxide, barium carbonate powder, zirconia powder, and electronic ultra-pure powders, among other areas of inorganic new materials.
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