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Materials 2013, 6(9), 3963-3977; doi:10.3390/ma6093963

Microstructural and Wear Behavior Characterization of Porous Layers Produced by Pulsed Laser Irradiation in Glass-Ceramics Substrates

1,* , 2
1 Materials Physics Center, University of Basque Country-CSIC, Pº Manuel Lardizabal 5, San Sebastian 20.018, Spain 2 Department of Surface Engineering, Corrosion and Durability, National Centre of Metallurgical Research CENIM-CSIC, Av. Gregorio del Amo 8, Madrid 28.040, Spain 3 Department of Science and Technology of Materials and Fluids, Material Science Institute of Aragon, University of Zaragoza-CSIC, Maria de Luna 3, Zaragoza 50.018, Spain
* Author to whom correspondence should be addressed.
Received: 1 July 2013 / Revised: 21 August 2013 / Accepted: 4 September 2013 / Published: 9 September 2013
(This article belongs to the Special Issue Advances in Surface Coatings 2013)
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In this work, wear behavior and microstructural characterization of porous layers produced in glass-ceramic substrates by pulsed laser irradiation in the nanosecond range are studied under unidirectional sliding conditions against AISI316 and corundum counterbodies. Depending on the optical configuration of the laser beam and on the working parameters, the local temperature and pressure applied over the interaction zone can generate a porous glass-ceramic layer. Material transference from the ball to the porous glass-ceramic layer was observed in the wear tests carried out against the AISI316 ball counterface whereas, in the case of the corundum ball, the wear volume loss was concentrated in the porous layer. Wear rate and friction coefficient presented higher values than expected for dense glass-ceramics.
Keywords: pulsed laser irradiation; layers; wear resistance; glass-ceramic pulsed laser irradiation; layers; wear resistance; glass-ceramic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Sola, D.; Conde, A.; García, I.; Gracia-Escosa, E.; de Damborenea, J.J.; Peña, J.I. Microstructural and Wear Behavior Characterization of Porous Layers Produced by Pulsed Laser Irradiation in Glass-Ceramics Substrates. Materials 2013, 6, 3963-3977.

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