|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5017586||1369528||2018||9 صفحه PDF||سفارش دهید||دانلود کنید|
We have studied the fabrication of line-like and pillar-like periodic microstructures on stainless steel by means of direct laser interference patterning. A picosecond (10Â ps) pulsed Nd:YAG laser operating at 1064Â nm wavelength was used to produce the microstructures with spatial periods ranging from 2.6Â Î¼m to 5.2Â Î¼m. By varying the laser parameters (laser fluence, pulse-to-pulse overlap) structure depths ranging from 500Â nm to nearly 11.5Â Î¼m could be obtained. Furthermore, low and high frequency laser induced periodic surface structures (LIPSS) have been generated, resulting in three-level multi-scaled patterns. The orientation of the laser induced periodic structures with respect to the interference patterns could be adjusted by controlling the laser beam polarization. Finally, static water contact angle measurements are performed to investigate its correlation with the surface morphology. The treated surfaces are characterized using confocal and scanning electron microscopy.
Journal: Journal of Materials Processing Technology - Volume 252, February 2018, Pages 313-321