Modification of anodised aluminium surfaces using a picosecond fibre laser for printing applications

ANSARI, Imtiyaz, WATKINS, K.G., SHARP, M. C., HUTCHINSON, R. A., POTTS, R. M. and CLOWES, J. (2012). Modification of anodised aluminium surfaces using a picosecond fibre laser for printing applications. Journal of Nanoscience and Nanotechnology, 12 (6), 4946-4950.

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Abstract

The use of an ultrafast fibre laser at a wavelength of 1064 nm has allowed the surface modification of anodised aluminium plates coated with a 2 micron thick anodised layer for potential industrial applications. The micro- and nano-scale structuring of the anodised aluminium using picosecond pulses of ∼25 ps duration at 200 kHz repetition rate was investigated. The interaction of the laser with the substrate created a hydrophilic surface, giving a contact angle of less than 10 degrees. On examination under a Scanning Electron Microscope (SEM), a morphology created due to laser induced spallation was observed. It has been found that these laser processed hydrophilic surfaces revert to a hydrophobic state with time. This has potential for application in the printing industry and offers reusability and sustainability of the process materials. This has been confirmed in initial trials.

Item Type:	Article
Research Institute, Centre or Group:	Materials and Engineering Research Institute > Materials Analysis and Research Services
Identification Number:	10.1166/jnn.2012.4955
Depositing User:	Helen Garner
Date Deposited:	10 Jul 2012 14:35
Last Modified:	10 Jul 2012 14:35
URI:	http://shura.shu.ac.uk/id/eprint/5536

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