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2013-01-29 - Colloque/Article dans les actes avec comité de lecture - Anglais - 1 page(s)

Basile Natanaël , Gonon Maurice , Petit Fabrice, Cambier Francis, "LASER TREATMENT ON CERAMIC POWDER COATINGS FOR MICROELECTRONIC COMPONENTS " in Fifth International Conference on Shaping of Advanced Materials, Mons, Belgium, 2013

  • Codes CREF : Sciences de l'ingénieur (DI2000), Lasers (DI125A), Technologie de la production (DI2780), Matériaux céramiques et poudres (DI2744)
  • Unités de recherche UMONS : Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)
Texte intégral :

Abstract(s) :

(Anglais) LASER TREATMENT ON CERAMIC POWDER COATINGS FOR MICROELECTRONIC COMPONENTS Natanaël BASILE UMONS, Faculté Polytechnique, Service de Sciences des Matériaux 20, place du Parc, 7000 Mons, Belgium, +3265374429 Maurice GONON UMONs, Faculté Polytechnique, Service de Sciences des Matériaux 20, place du Parc, 7000 Mons, Belgium, +3265374422 Fabrice PETIT Belgium Ceramic Research Centre 4, Avenue du Gouverneur Cornez, 7000 Mons, Belgium, +3265403464 Francis CAMBIER Belgium Ceramic Research Centre 4, Avenue du Gouverneur Cornez, 7000 Mons, Belgium, +3265403421 natanael.basile@umons.ac.be Summary The purpose of this research is to investigate the remelting and crystallisation by selective laser treatment of a glass powder in the Sr-Ti-Si-B-K-O in order to form glass-ceramic containing fresnoite crystals (Sr2TiSi2O8). The aim is to determine suitable conditions to form dense thin components usable for piezoelectric applications. Powder compacts have been treated in order to characterize the response of the powder according to the laser scan conditions (power, spot speed and vectorization step of the scan lines). The structure of the surface after selective laser treatment by a Nd-YVO4 (20W / 40 µm spot size / cw mode) have been evaluated by X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). Results show that suitable scanning conditions make possible to obtain: first, a dense and homogeneous glass coating; second, the devitrification of this amorphous coating. Moreover, the XRD patterns and the SEM observations highlight that the final coating is fully crystallized with Sr2TiSi2O8 crystals with a (00l) preferential orientation.