Perlite
Perlite is a volcanic glass or a form of gypsum that is used as a filler in a variety of metal alloys, including those containing magnesium. It is the most commonly used filler material in magnesium alloys due to its low density and low thermal conductivity. It is often used to reduce the weight and improve the machinability of magnesium alloy components. It also improves their corrosion resistance, electrical insulation properties, and weldability. However, perlite has a limited ability to reduce and prevent the growth of dendritic grains in the alloy, which can lead to poor mechanical properties.
Applications
Magnesium alloys containing perlite are used in a wide range of industries, including automotive, aerospace, energy, electronics, and industrial. In the automotive industry, magnesium alloys are used in wheels, exhaust systems, and body structures. In the aerospace industry, they are used in aircraft panels, engine components, and other fuel efficient parts. In the energy industry, they are used in standing frames and enclosures for turbines, compressors, oil, and gas equipment. In the electronics industry, they are used in cell phones, computers, and other electronic components. In the industrial sector, magnesium alloys are used in industrial parts, tools, and machines, as well as in medical implants.
Conclusion
Magnesium alloys containing perlite are popular due to their low density, low thermal conductivity, good machinability, improved corrosion resistance, and electrical insulation properties. These alloys are used in a variety of industries and applications, from automotive, aerospace, and energy to electronics and industrial. They are used in wheels, exhaust systems, body structures, aircraft panels, engine components, and industrial parts, tools, and machines. Perlite is the most commonly used filler material in magnesium alloys due to its affordability and availability. Despite its advantages, perlite has limited ability to reduce and prevent the growth of dendritic grains in an alloy, which can lead to poor mechanical properties of the alloy.
