Overview Surface Engineering

JOM

, Volume 57, Issue 12, pp 46-50

The application of laser-induced multi-scale surface texturing

  • P. Gregory EnglemanAffiliated withthe Department of Materials Science and Engineering, the University of Tennessee at Knoxvillethe Materials Processing Group in the Metals and Ceramics Division at Oak Ridge National Laboratory
  • , Narendra B. DahotreAffiliated withthe Department of Materials Science and Engineering, the University of Tennessee at Knoxvillethe Materials Processing Group in the Metals and Ceramics Division at Oak Ridge National Laboratory
  • , Anil KurellaAffiliated withthe Department of Materials Science and Engineering, the University of Tennessee
  • , Anoop SamantAffiliated withthe Department of Materials Science and Engineering, the University of Tennessee
  • , Craig A. BlueAffiliated withthe Materials Processing Group in the Metals and Ceramics Division, Oak Ridge National Laboratory

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Abstract

Recently, there has been interest in controlling microstructure and surface texture on smaller and smaller scales. However, in nature, materials are organized on length scales varying from the nano- to the micro- and larger. In order to realize hierarchical structuring for use in biomedical and mechanical systems, two methods for producing multi-scale surface microstructures and physical textures are explained. The first investigates the use of a marking laser to produce multi-scale texturing of zirconia coatings on Ti-6Al-4V substrates and the second method discusses the design and challenges associated with laser interference surface texturing along with process and material factors controlling surface structures.