What is metal silicon used for?
High-purity metallic silicon is used by many industries. In the chemical industry, it is used in the production of silicon compounds and silicon wafers for photovoltaic solar cells and electronic semiconductors. Aluminum manufacturers use it to improve aluminum's already useful properties. When used with aluminum, silicon improves its castability, hardness and strength.
Furthermore, demand for aluminum has been growing steadily in recent years, reflecting economic activity in both developed and developing countries. This demand for lighter, more economical materials has triggered increased consumption of silicon metal by aluminum manufacturers.
