Graphite Crucible

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)