CORROSION-RESISTANT IRON THIN-FILMS FORMED BY PULSED-LASER DEPOSITIONWITH CAST-IRON TARGETS

Iron thin films were prepared by pulsed laser deposition using cast ir on as a target. The films deposited by using a 1.064 mu m Nd:YAG laser on silicon wafer corroded easily in a 0.001 mol/l NaCl aqueous soluti on, as seen by a change of the surface color. In a similar test, no vi sible change of the color was observed for the film deposited by using the 532 nm second harmonics from the Nd:YAG laser. However, the inspe ction under an optical microscope revealed localized corrosion around the particles mixed into the iron film. (C) 1998 Elsevier Science B.V.