Fig. 9: Optical images of cross sectioned chromium coatings.
From: Feasibility of on-site generated nitrogen as a sustainable cold spray process gas
a Chromium sample sprayed with pure bottled nitrogen, 99.998% N2. b Chromium sample sprayed with PSA generated nitrogen, 97.6% N2. c Chromium samples sprayed with PSA+ generated nitrogen, 97.6% N2. d Chromium samples sprayed with L→G generated nitrogen, 99.99% N2.
