The potential and limitations of Rayleigh wave spectroscopy to characterize the elastic depth profileof heterogeneous functional gradient materials are investigated by comparing simulations of thesurface acoustic wave dispersion curves of different profile-spectrum pairs. This inverse problem isshown to be quite ill posed. The method is then applied to extract information on the depth structureof a glass-ceramic alumina functionally graded material from experimental data. The surfaceacoustic wave analysis suggests the presence of a uniform coating region consisting of a mixture ofAl2O3 and glass, with a sharp transition between the coating and the substrate. This is confirmed byscanning electron microscope with energy dispersive x-ray analysis.

Surface acoustic wave depth profiling of functionally graded material / J., Goossens; P., Leclaire; X., Xu; C., Glorieux; L., Martinez; Sola, Antonella; Siligardi, Cristina; Cannillo, Valeria; T., VAN DER DONK; J. P., Celis. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - STAMPA. - 102:(2007), pp. 52508-52508-8.

Surface acoustic wave depth profiling of functionally graded material

SOLA, Antonella;SILIGARDI, Cristina;CANNILLO, Valeria;
2007

Abstract

The potential and limitations of Rayleigh wave spectroscopy to characterize the elastic depth profileof heterogeneous functional gradient materials are investigated by comparing simulations of thesurface acoustic wave dispersion curves of different profile-spectrum pairs. This inverse problem isshown to be quite ill posed. The method is then applied to extract information on the depth structureof a glass-ceramic alumina functionally graded material from experimental data. The surfaceacoustic wave analysis suggests the presence of a uniform coating region consisting of a mixture ofAl2O3 and glass, with a sharp transition between the coating and the substrate. This is confirmed byscanning electron microscope with energy dispersive x-ray analysis.
102
52508
52508-8
Surface acoustic wave depth profiling of functionally graded material / J., Goossens; P., Leclaire; X., Xu; C., Glorieux; L., Martinez; Sola, Antonella; Siligardi, Cristina; Cannillo, Valeria; T., VAN DER DONK; J. P., Celis. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - STAMPA. - 102:(2007), pp. 52508-52508-8.
J., Goossens; P., Leclaire; X., Xu; C., Glorieux; L., Martinez; Sola, Antonella; Siligardi, Cristina; Cannillo, Valeria; T., VAN DER DONK; J. P., Celis
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/585788
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