Improving the methodology for coating defects detection |
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Authors: | N Llorca-Isern M Puig M Español |
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Affiliation: | (1) Dept. E.Q.-Metallurgia, Fac. Quimica, Universitat de Barcelona, Marti-Franques 1, E-08028 Barcelona, Spain |
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Abstract: | A vacuum impregnation procedure for examining the microstructure of thermal spray coatings has been evaluated using a low-viscosity
fluorescent resin. The use of confocal laser scanning microscopy for examining the microstructure allows three-dimensional
image reconstruction of the sample. Relationships between defects (i.e., porosity or micro/macrocracking) and coating properties
can be established more accurately with the proposed methodology because it enables quantitative analysis. |
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Keywords: | adhesion characterization cohesion confocal microscopy porosity thermal spray coatings three-dimensional reconstruction |
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