Fig. 3: Characterization of Ta coatings after vented vessel test.
From: Failure mechanism of sputtered Ta coatings on short rifled gun bore under vented vessel tests
a mass change of the Ta coated sample after each firing rounds in average; b XRD patterns after 10 vented vessel firings; c metallographic photograph of cross-sectional morphology; d cross-sectional hardness vs depth distribution from coating surface to deep substrate.
