Abstract
A new process, the Pulsed-Cold Gas Dynamic Spraying process is presented in this work. A description of the process and of the experimental set-up developed at the University of Ottawa Cold Spray Laboratory is presented. It is envisioned that this process could allow for the feedstock particles to be accelerated to high impact velocities and intermediate temperatures, in a non-reacting gas. That way, the intermediate particle impact temperature would lead to a lower critical velocity as compared with CGDS that could be easily reached while preserving the chemical and microstructural composition of the feedstock particles in the coating. Selected examples of the variety of coatings produced with the system are presented, illustrating the potential of the process to deposit various materials as well as its main benefits.
