Quartz Crucibles

​Semicorex Quartz crucibles are high-purity products of quartz sand, specifically meant for use in the crystal growth processes of the photovoltaic industry. The quartz crucibles from Semicorex provide outstanding cleanliness as well as homogeneity and high resistance to temperature that ensure optimal performance and reliability in applications involving continuous pulling of crystals.

Quartz crucibles are important consumable parts in the photovoltaic industry, mostly used to contain polycrystalline silicon raw materials during high-temperature processes. These crucibles aid in the continuous pulling step with silicon crystals which is very important for creating quality silicon ingots later used in making solar cells. Made from high-purity quartz sand, these crucibles are designed to fulfill the strict needs of today’s crystal growth methods.

The product's exceptional thermal and mechanical properties make it indispensable for high-temperature processes. Its deformation point is approximately 1100°C, while the softening point reaches 1730°C. The crucibles can withstand continuous use at temperatures up to 1100°C and can tolerate short-term peaks of 1450°C. Such robust thermal performance ensures that the quartz crucible remains stable under the extreme conditions required for silicon crystal pulling.

Key Features

High Purity: Made from premium quartz sand, the crucibles offer unparalleled purity levels, reducing contamination and enhancing the overall quality of silicon crystals.

Superior Thermal Resistance: The high deformation and softening points ensure that the crucibles maintain structural integrity under extreme heat, providing reliable support for crystal pulling.

Homogeneity: Uniform material properties throughout the crucible enable consistent thermal performance and minimize risks of material failure.

Cleanliness: The crucibles' ultra-clean surface ensures that no impurities are introduced during the high-temperature crystal growth process, guaranteeing superior ingot quality.

Durability: Designed to withstand thermal shocks and prolonged high-temperature exposure, the crucibles exhibit excellent longevity even under demanding conditions.

Applications in the Photovoltaic Industry

Quartz crucibles are very important for photovoltaic manufacturing, notably for producing monocrystalline and polycrystalline silicon ingots. The high-temperature furnaces where these crucibles are used require melting polycrystalline silicon and gradually pulling it to form a cylindrical silicon crystal.

Handling severe thermal cycles, and chemical stability—both these factors play a very crucial role in the production of consistent crystal growth. This clean and stable environment is provided effectively by quartz crucibles, thereby contributing to the efficiency of the crystal pulling process and the quality of silicon wafers that will later be fabricated into solar cells.