Ceramic, metal and composite materials having increased surface area
AssigneeUniversity of Florida
InventorsRajiv K. Singh, Brij M. Moudgil, Sanjay Behl, Deepika Bhattacharya
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Abstract
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.
Claims12
A surface on a metal material having periodic conical surface structures less than 200 microns in height and less than 100 microns in thickness.
A surface on a ceramic material having periodic conical surface structures less than 200 microns in height and less than 100 microns in thickness.
A surface on a composite material containing metal or ceramic having periodic conical surface structures less than 200 microns in height and less than 100 microns in thickness.
Dependencies are inferred from the claim text.