Indrišiūnas Simonas, Svirplys Evaldas, Gedvilas Mindaugas
Department of Laser Technologies (LTS), Center for Physical Sciences and Technology (FTMC), Savanorių Ave. 231, LT-02300 Vilnius, Lithuania.
Materials (Basel). 2022 Aug 11;15(16):5534. doi: 10.3390/ma15165534.
In this research, the wetting property control of a stainless-steel surface, structured using parallel processing via an array of 64-femtosecond laser beams, is presented. The scanning of an 8 × 8-beam array over the sample was used to uniformly cover the large areas with LIPSS. The static water contact angle and the LIPSS period dependence on processing parameters were investigated. The wettability control of water droplets on laser-patterned stainless steel, ranging from contact angles of ~63°, similar to those of the plain surface, to the superhydrophobic surface with contact angles > 150°, was achieved. The relationship between the static water contact angle and the LIPSS parameters in the Fourier plane was investigated.
本研究展示了通过由64束飞秒激光束组成的阵列进行并行处理来构造不锈钢表面的润湿性控制。使用8×8光束阵列在样品上进行扫描,以用激光诱导周期性表面结构(LIPSS)均匀覆盖大面积区域。研究了静态水接触角和LIPSS周期对加工参数的依赖性。实现了对激光图案化不锈钢上水滴润湿性的控制,其接触角范围从与平整表面相似的约63°到接触角大于150°的超疏水表面。研究了傅里叶平面中静态水接触角与LIPSS参数之间的关系。