Quartz Crucible
Quartz crucible is the necessary container for monocrystalline silicon and polycrystalline silicon's producing and also the basic equipment for semiconductor industry and silicon solar cell.
SiO2(wt%) ≥99.5-99.9
Bulk density (g / cm3) ≥ 1.85-2.0
Apparent porosity (%) ≤ 5-15
Normal temperature compressive strength (MPA) ≥ 50-120
Bending strength at room temperature (MPA) ≥ 25
High temperature bending strength (MPA) ≥ 28
Coefficient of thermal expansion (× 10-6k-1) < 0.6
Heat conductivity 66.0 ℃
