High-Purity Graphite Crucibles for Melting & Crystal Growth
Engineered for high-temperature melting and crystal synthesis, our premium graphite crucibles exhibit high thermal conductivity, exceptional chemical corrosion resistance, and low thermal expansion. Derived from dense Graphite Block stock, these crucibles withstand severe heating conditions without contaminating high-purity melts, making them essential for non-ferrous metal refining, photovoltaic silicon growth, and rare metal processing.
High Melt Purity
Purified up to < 5 ppm to prevent foreign metallic contamination during thermal reactions.
Superior Oxidation & Erosion Resistance
Can be enhanced with Siliconized Graphite Coatings to further resist aggressive liquid metals.
Optimized Thermal Distribution
Uniform wall thickness minimizes hot spots and promotes homogeneous molten liquid pools.
| Crucible Type | Key Technical Advantage | Primary Process Application |
|---|---|---|
| Isostatic Graphite Crucible | High isotropic strength, high resistance to thermal stress cracking | Photovoltaic & monocrystalline silicon growth |
| Clay-Graphite Crucible | Cost-effective, high thermal mass, shock resistant | Non-ferrous metal melting (Copper, Aluminum, Gold) |
| SiC-Coated Graphite Crucible | Extreme oxidation resistance, smooth non-wetting surface layer | Compound semiconductor synthesis (GaAs, InP) |
