Powder pre-conditioning

Exploring powder material

The quality of cold spray depositions strongly depends on the characteristics of the feedstock powder. The powder’s geometry and size play a major role in the efficiency of the deposition process. Beyond the inherent structural properties, the powder’s microstructure, including grain size, phases, precipitates, oxide layers, and composition, significantly affects the final cold spray coating properties. Physical, chemical, and heat treatment methods can be applied to modify the feedstock properties prior to spraying, aiming to mitigate any negative powder attributes that could hinder the deposition process.