Products Description
Silicon metal is a high-purity form of silicon (Si) produced by reducing silica (SiO₂) in an electric arc furnace using carbon electrodes. It is a gray, lustrous, brittle semi-conductive material with a crystalline structure. Silicon metal typically contains 98–99.5% silicon, with trace amounts of iron, aluminum, calcium, and other impurities depending on the refining process.
Due to its semiconductor properties, thermal stability, and chemical resistance, silicon metal is a crucial raw material in multiple industries, including electronics, solar energy, aluminum alloys, and chemicals.
Specifications
Metallic silicon is usually classified based on the content of three main impurities contained in metallic silicon: Fe, Al, and Ca.
Key Features & Benefits
High Purity & Semiconductor Properties
Silicon metal is refined to ultra-high purity levels (up to 99.9999% for electronic-grade silicon).
Its semiconductor properties make it essential for manufacturing integrated circuits, microchips, and photovoltaic cells.
01
Excellent Thermal & Chemical Stability
Resists oxidation at high temperatures, making it ideal for high-heat applications.
Chemically inert to most acids (except hydrofluoric acid) and alkalis.
02
Lightweight & High Strength
When alloyed with aluminum, silicon metal enhances strength while reducing weight, crucial for automotive and aerospace applications.
03
Electrical Conductivity Control
Doping silicon with elements like boron or phosphorus allows precise control of its conductivity, enabling its use in transistors and diodes.
04
Abundant & Cost-Effective
Silicon is the second most abundant element in the Earth's crust (after oxygen), ensuring a stable supply.
05
Applications
Electronics & Semiconductor Industry
Integrated Circuits (ICs) & Microchips: Silicon wafers serve as the base material for CPUs, memory chips, and other electronic components.
Diodes & Transistors: Doped silicon is used in power electronics, LED technology, and telecommunications.
Solar Energy (Photovoltaic Cells)
Solar Panels: High-purity silicon is processed into monocrystalline or polycrystalline silicon to convert sunlight into electricity.
Thin-Film Solar Cells: Amorphous silicon is used in flexible and lightweight solar applications.
Aluminum Alloys
Silicon (as a silicon-aluminum alloy) improves castability, strength, and corrosion resistance.
Used in automotive parts (engine blocks, wheels), aerospace components, and construction materials.
Automotive Industry
Chemical Industry
Silicones Production: Silicon metal is a precursor for silicones, used in lubricants, sealants, adhesives, and medical implants.
Silanes & Silicone Resins: Used in waterproof coatings, electrical insulation, and high-temperature resistant materials.
Chemical Industry
Refractories & Metallurgy
Added to steel and cast iron to improve deoxidization and strength.
Used in high-temperature refractory materials for furnaces and kilns.
Construction and Infrastructure
Other Applications
Batteries: Silicon anodes are being developed for next-generation lithium-ion batteries.
Ceramics & Glass: Silicon enhances durability and thermal shock resistance in ceramics and specialty glass.
Conclusion
Silicon metal is a versatile and indispensable material in modern technology, playing a critical role in electronics, renewable energy, metallurgy, and chemicals. Its unique combination of semiconductor behavior, thermal stability, and alloy-enhancing properties ensures its continued demand across industries. As technology advances, silicon metal will remain a cornerstone of innovation in electronics, energy storage, and advanced manufacturing.
FAQ
Q: What is Foreign Trade-Express?
A: Foreign Trade Express is a one-stop intelligent foreign trade network marketing SaaS system platform.
Q: Are you a manufacture or trader?
A: We are manufacture.
Q: How are the products' quality?
A: The products will be strictly inspected before shipment, so the quality could be guaranteed.
Q: How about your company's certification?
A: ISO9001 and Test Report.
Q: What's the MOQ of trial order?
A: No limit,We can offer the best suggestions and solutions according to your condition.
Q: How long is delivery time?
A: The delivery time will be determined according to the quantity of the order.
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