In-situ simultaneous measurement of thickness, elastic moduli and density of thermal sprayed WC-Co coatings by laser-ultrasonics

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DOIResolve DOI: http://doi.org/10.1007/s11666-007-9025-8
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TypeArticle
Journal titleJournal of Thermal Spray Technology
Volume16
Issue2
Pages238244; # of pages: 7
Subjectelastic moduli; laser-ultrasonics; non-destructive testing; WC-12Co
AbstractA method for simultaneous nondestructive evaluation of WC-Co coating thickness, elastic moduli, and density is presented. The technique, known as laser-ultrasonics, is used to generate and detect surface acoustic waves in a noncontact and nondestructive manner. The surface acoustic wave velocity dependence on frequency is compared to a model and an optimization procedure is used to evaluate the coating properties. The results obtained demonstrate the ability of the technique to simultaneously determine such properties with a single and possibly in situ measurement.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NRC number48886
NPARC number15769639
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Record identifiera8141a11-02e3-4f07-a3cf-fee283ecd14a
Record created2010-07-06
Record modified2016-05-09
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