Often referred to as crystalline silicon or industrial silicon, silicon metal is a glossy, grey semiconductor metal that is mostly used as an addition to non-ferrous alloys. In an electric furnace, quartz and coke are converted into silicon metal, which has a 98% silicon element content (in recent years, silicon metal with a 99.99% silicon content has also been called silicon metal). The remaining impurities are mostly iron, aluminium, calcium, and other elements. Based on the amount of iron, aluminium, and calcium present, metallic silicon is classified into several classes, including 553, 441, 411, 3303, 2202, and 1101.
Purpose Of Silicon Metal
- Use for Al alloy product: It can be added to aluminium alloys to improve their strength, reduce their density and coefficient of thermal expansion, increase their resistance to corrosion and anti-oxidation, improve their casting performance, and give them high impact and pressure resistance.
- Applied to cold-rolled silicon steel products: By incorporating silicon metal into steel, it may significantly enhance the metal’s magnetic characteristics, boost its permeability, and lower eddy current and hysteresis losses.
- Use for high-purity semiconductor products: As technology advances, integrated circuits and large-scale integrated circuits made from silicon semiconductors have been used in a variety of fields, with demand for these products rising year over year. This is because silicon has a high melting point, good thermal stability, a large band gap, and abundant resources.
- Silicone, silicone resin, and silicone oil are examples of organic silicon compounds. Silicone: can be used for cold insulating materials and high-temperature gaskets because it retains its flexibility between -700°C and 2000°C. Silicon resin: A heat temperature of 180 to 2000°C can be used to produce high-temperature coatings, as well as insulating paint. Silicone oil: This transparent liquid can also be treated in a colourless form and sprayed on buildings to provide waterproofing. It is used in the manufacture of dielectric liquid, fluid springs, senior lubricants, and polishing agents. The organic silicon industry is using silicon metal more frequently than the aluminium alloy industry; in fact, the volume of consumption is generally greater.
- Application for the Heat-Resisting Material Product: For the manufacturing of Wear-, corrosion-, and heat-resistant Si3N4. Oxidation can be avoided by creating the coated material. Steel surfaces that have been siliconized can increase the steel’s resistance to corrosion.
Applications of Silicon Metal 421
1. Alloying Agent: Silicon Metal 421 is frequently employed in the synthesis of several alloys, particularly aluminium alloys, as an alloying agent. It can improve the alloys’ hardness, strength, and other characteristics.
2. Silicone Compounds: The chemical industry uses the silicon metal 421 to produce silicone compounds. These substances are used in the production of sealants, adhesives, lubricants, and coatings, among other things.
3. Ceramics: An additive such as silicon metal 421 can be used in ceramics. It can enhance the hardness, strength, and ability to withstand the high temperatures of ceramic materials.
4. Welding Rods: Welding rods are manufactured using silicon metal 421. It can improve the welding process’s efficiency and stability.
Silicon Metal 421 finds its applications in powder metallurgy.
5. It can be added to metal powders to enhance their strength and wear resistance, among other qualities.
6. Refractories: The manufacturing of refractory materials makes use of Silicon Metal 421. It has the potential to improve these materials’ resistance to heat, wear, and oxidation.
7. Electronic Substrates: The production of electronic substrates makes use of silicon metal 421. These substrates serve as a solid foundation for the integration of electronic components and are crucial parts of electronic devices.
8. Cement and Refractory Materials: You can enhance the strength and durability of cement and refractory materials by adding Silicon Metal 421.
9. Vapour Deposition and Plasma Spray: The methods of vapour deposition and plasma spray make use of silicon metal 421. It can be applied as a coating material to improve different substrates’ surface qualities.
10. Chemical Formulations and Grinding Wheels: A variety of chemical products are formulated using silicon metal 421. It can also be added to grinding wheels to enhance their functionality.
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