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The dependence of the surface morphology and chemical composition of hydroxyapatite (HA) thin films on the laser fluence and ambient gas pressure during their formation by pulsed laser deposition was studied as the first step to investigate the effect of physical and chemical interactions between the ablated chemical species and ambient gas molecules on HA film formation. It was found that a higher...
In this study, the structure and composition of primary and secondary passive films formed on AM355 martensitic stainless steel were characterized and compared. The film composition analysis revealed that the Fe/Cr ratio in the secondary passive film is significantly lower than that in the metal matrix. Both the primary and secondary passive films are composed of nanoscale particles, and some pores...
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