Gassatomisering

Gassatomisering is a process used in metallurgy and materials science to produce fine powders of metals and alloys. It involves melting the material and then atomizing it into tiny droplets using a high-pressure stream of gas, typically nitrogen or argon. As these droplets cool and solidify in flight, they form spherical or near-spherical particles. The size and morphology of the resulting powder particles can be controlled by adjusting parameters such as gas pressure, nozzle design, and cooling rate.

The primary advantage of gassatomisering is its ability to create powders with high purity and excellent flowability. The rapid cooling prevents segregation of alloying elements and minimizes oxidation, resulting in powders suitable for advanced applications. These powders find use in various manufacturing techniques, including additive manufacturing (3D printing), powder metallurgy, and thermal spray coatings. The precise control over particle size and shape allows for tailored material properties and improved performance in end products.

Gassatomisering is a versatile method, adaptable to a wide range of metals and alloys, including high-temperature superalloys, stainless steels, and reactive metals. The inert gas atmosphere used during the process is crucial for preventing contamination and ensuring the integrity of the powder material. The resulting fine powders can be consolidated into dense, high-performance components through various methods.