Alumina Silica Crucible For Powder Calcining
🔬 1. Product Introduction
Gotrays Graphite offers a wide range of ceramic crucibles made from alumina, silica, and composite materials. These crucibles are essential tools in the chemical, metallurgical, and materials industries, primarily used for calcining powders, sample preparation, and high-temperature processing.
We provide crucibles in various sizes, shapes, and material compositions, ensuring compatibility with different temperature conditions, material types, and analytical requirements.
📊 2. Technical Data Sheet (TDS) - Crucibles by Material Type
| Property | Cordierite | Mullite | Cordierite-Mullite | Mullite-Corundum | High-Alumina Ceramic |
|---|---|---|---|---|---|
| Al₂O₃ (%) | ≥ 40 | ≥ 65 | ≥ 80 | ≥ 92 | 99.7 |
| SiO₂ (%) | ≤ 48 | ≤ 28 | ≤ 18 | ≤ 5 | Trace |
| Fe₂O₃ (%) | ≤ 1.5 | ≤ 1.5 | ≤ 1.2 | ≤ 0.5 | Trace |
| Bulk Density (g/cm³) | ≥ 2.0 | ≥ 2.4 | ≥ 2.6 | ≥ 3.7 | 3.9 |
| Thermal Expansion (1000℃) | 2.3 | 5.0 | 6.5 | 7.8 | - |
| Refractoriness (°C) | ≥ 1580 | ≥ 1650 | ≥ 1750 | ≥ 1850 | ≥ 1850 |
| Thermal Stability at 1100℃* | ≥ 70 cycles | ≥ 20 cycles | ≥ 10 cycles | ≥ 5 cycles | - |
| Recommended Working Temp (°C) | ≤ 1250 | ≤ 1350 | ≤ 1450 | ≤ 1500 | Up to 1500 |
⚠️ Note: The above data represents typical average values. Variations may occur due to production conditions. Custom grades and sizes are available upon request from our in-house R&D team.
⭐ 3. Key Advantages
Our crucibles are engineered for reliable performance in demanding environments, offering:
✅ High hardness - durable under mechanical stress
✅ Excellent thermal shock resistance - suitable for rapid heating/cooling cycles
✅ Outstanding wear resistance - extended service life
✅ Superior chemical inertness - stable in corrosive or reactive atmospheres
🧪 4. Product Applications
Our crucibles are widely used in:
Melting and firing of metals and non-metals
Chemical and materials analysis in laboratories
Calcination of rare earths or precious metals
Powder sintering and sample preparation in industrial furnaces
Especially, high-alumina crucibles (99.7%) are preferred for precise high-temperature analysis involving valuable or reactive materials.
Hot Tags: alumina silica crucible for powder calcining, China alumina silica crucible for powder calcining suppliers, manufacturers, factory, Ceramic Sagger, Graphite Crucible With Lid, Fused Quartz Plate, Cordierite Mullite Crucibles, Corundum Sagger, Alumina Crucible With Lid
You Might Also Like
Send Inquiry