Vijay Commercial House

Definition

• A quartz crucible is a high-temperature resistant container made from fused silica (SiO₂), used for melting, heating, and holding materials.

Material Composition

• Made of high-purity quartz (silicon dioxide).

• Available as fused quartz (transparent) or fused silica (opaque).

Manufacturing Process

• Produced by melting natural quartz at very high temperatures (~1700°C) and shaping it into crucible form.

Structure & Shape

• Usually cylindrical with a rounded or flat bottom.

• Smooth internal surface to minimize contamination.

Key Properties

• High temperature resistance (typically up to 1200–1700°C)

• Low thermal expansion (resists thermal shock)

• High chemical purity

• Good resistance to most acids

• Transparent to infrared radiation