Silicon metal powder is a fine powder material made by pulverizing lump silicon metal (usually industrial silicon), and the silicon content is usually above 98%. According to the requirement of fineness, the particle size of silicon metal powder can be controlled between tens of microns and hundreds of microns. Silicon metal powder is widely used in metallurgical, chemical and electronic industries, and is an important industrial material.
silicon metal powder characteristics
1. High purity: Silicon metal powder has high silicon content, few impurities and good chemical stability.
2. Good high temperature resistance: Silicon metal powder remains stable at high temperature and is not easy to be oxidized or corroded.
3. Thermal conductivity and electrical insulation: although good in thermal conductivity, it exhibits good electrical insulation in most applications and is suitable for specific insulation needs.
4. Processability: Silicon metal powder can be further processed and the fineness can be adjusted according to the application requirements.
silicon metal powder applications
1. Aluminum alloy additive:
- Silicon metal powders are used as additives to aluminum alloys to improve their strength, hardness and corrosion resistance, and are commonly used in construction, aerospace and automotive manufacturing.
2. Organic silicon chemicals:
- In the production of silicone products, metallic silicon powder is the main raw material for the production of silicone rubber, silicone oil, silicone resin and other products, which are widely used in coatings, adhesives, daily necessities and electronic products.
3. Metallurgical deoxidizer:
- Silicon metal powder is added to steelmaking and other metallurgical processes as a deoxidizer, which can effectively remove oxygen from molten steel and improve the purity and quality of steel.
4. Refractories:
- Silicon metal powder is an integral part of many refractory materials and is used in the manufacture of high-temperature kiln linings to enhance the high-temperature and oxidation resistance of refractory materials.
5. Solar and semiconductor:
- Although not as pure as electronic-grade silicon, silicon metal powder is also used as a raw material for solar cells and some semiconductors.
Silicon metal powder has become an indispensable basic material for many industries due to its excellent high temperature resistance, chemical stability and thermal conductivity.
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