摘要:
A method for increasing the surface area and roughness of metals, ceramics and composites on a micro-scale, and the surfaces themselves, is disclosed whereby a laser beam having a radiation wavelength of from UV to infrared is pulsed onto the surface of the material. The energy density of the radiation is between 0.01 to 15 J/cm.sup.2 and at least 50 pulses of radiation having duration of from 1 picosecond to 1 millisecond are used on each area. The surface structures formed are semi-periodic and are from 1/4 to several hundred microns in magnitude.
摘要:
A method for increasing the surface area and roughness of metals, ceramics and composites on a micro-scale, and the surfaces themselves, is disclosed whereby a laser beam having a radiation wavelength of from UV to infrared is pulsed onto the surface of the material. The energy density of the radiation is between 0.01 to 15 J/cm.sup.2 and at least 50 pulses of radiation having duration of from 1 picosecond to 1 millisecond are used on each area. The surface structures formed are semi-periodic and are from 1/4 to several hundred microns in magnitude.
摘要翻译:公开了一种用于增加微尺度上的金属,陶瓷和复合材料的表面积和粗糙度以及表面本身的方法,由此将具有从UV到红外的辐射波长的激光束脉冲到材料的表面上。 辐射的能量密度在0.01至15J / cm 2之间,并且在每个区域上使用持续时间为1皮秒至1毫秒的至少50个脉冲的辐射。 所形成的表面结构是半周期性的,其数量级为1/4至几百微米。