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| Abstract No.: |
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Scheduled at:
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Thursday, September 29, 2011, Saal C2.2 3:15 PM
Pre- & Post-Treatment 3
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| Title: |
Excimer laser surface treatment of plasma sprayed coatings
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| Authors: |
Ahmed Ibrahim* / Farmingdale State College, USA
Christopher Berndt / Swinburne University, Australia
Michael Khonsari/ Louisiana State University, LA 70803-6413
Mohamad Zoghi/ Farmingdale State College, New York, 11735
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| Abstract: |
Excimer laser annealing provides a rapid and efficient means for surface alloying and modification of ceramic materials. In this study, Alumina-13% Titania coatings were sprayed with a water-stabilized plasma spray gun. The coated surface was treated by Excimer laser having a wavelength of 248 nm and pulse duration of 24 ns. The surface structure of the treated coating was examined by field emission scanning electron microscope and X-ray diffraction (XRD). The effect of varying the pulse repetition rate (PRR) and number of pulses on the mechanical properties, surface morphology and microstructure of the coatings under consideration are discussed in details.
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