Cadinhos de quartzo
Quartz crucibles are high-purity fused silica containers designed for extreme temperatures during crystal growth, metal melting, and high-temperature processes. Essential components in Czochralski silicon crystal growth and solar ingot casting.
## Key specifications to verify
| Property | Typical Range | Why It Matters |
|----------|--------------|----------------|
| SiO₂ purity | ≥ 99.99% | Impurities degrade crystal quality |
| Operating temperature | Up to 1,300°C | Must withstand molten silicon |
| Inner diameter | 2"–32" (50–800mm) | Must match equipment specs |
| Wall thickness | 3–15mm | Affects thermal uniformity |
## Crucible types by application
- **CZ crucibles**: Single-crystal silicon growth, highest purity (≥99.998%)
- **Solar crucibles**: Polycrystalline silicon casting, square format
- **Laboratory crucibles**: Chemical analysis and material testing (2"–6")
## Common applications
- Semiconductor crystal growth (CZ method)
- Polycrystalline solar wafer production
- Laboratory analysis and ash determination
- Precious metal melting
## What to clarify before inquiry
Specify the application, inner diameter, wall thickness, purity grade, and expected monthly consumption.
Preocupações do comprador
- Raw material purity grade
- Dimensional accuracy
- Thermal shock resistance
- Surface finish quality
Considerações sobre fornecimento
- Specify application: crystal growth, solar, or laboratory
- Confirm inner diameter and wall thickness
- Verify raw material SiO₂ purity (≥99.99%)