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NDE using laser generated ultrasound and integrated ultrasonic transducer receivers

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4 Author(s)
Jen, C.K. ; Ind. Mater. Inst., Nat. Res. Council of Canada, Boucherville, QC ; Wu, K.-T. ; Kobayashi, M. ; Blouin, A.

Non-destructive evaluation (NDE) of parts using laser generated ultrasound and integrated ultrasonic transducers (IUTs) as receiver is presented. Pulsed laser represents a versatile ultrasound generation transducer. Sol-gel fabricated thick piezoelectric film IUTs coated directly onto steel, aluminum (Al) and graphite/epoxy (Gr/Ep) composites substrates with planar or curves surfaces serve as efficient ultrasonic receivers without the need of couplant. Ultrasonic NDE of metals and Gr/Ep composite using laser generation in the thermoelastic or ablation regime and IUT receiving in longitudinal bulk waves, symmetric or shear-horizontal plate acoustic waves has been carried out.

Published in:

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Date of Conference:

2-5 Nov. 2008