| Titre : |
Prospects for assessing the adhesive performance of coatings by non-destructive methods |
| Type de document : |
texte imprimé |
| Auteurs : |
J. A. Graystone, Auteur ; R. Kennedy, Auteur |
| Année de publication : |
2005 |
| Article en page(s) : |
p. 163-170 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Adhésion
Contrôle non destructif
Emission acoustique
Interférométrie
lasers
Revêtements organiques
Thermographie
|
| Tags : |
Formation motif Subsurface Interférométrie Thermographie Emission acoustique Peinture Propriété surface Adhérence Essai non destructif Revêtement Performance Etude expérimentale |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Adequate adhesion is the sine qua non for good practical performance in surface coatings systems such as paint. By far the majority of tests used in the coatings industry are destructive and difficult to correlate with performance. Moreover, destructive tests are incompatible with best practice in inspection and quality control. A range of non-destructive testing techniques was appraised for their ability to investigate different types of coating failure involving adhesion. Three techniques were selected for preliminary investigation, namely acoustic emission, pulse thermography and laser interferometry. All three techniques were capable of investigating different aspects of adhesive failure. Pulse thermography could detect subsurface damage not apparent to visual inspection, and acoustic emission could, under some circumstances, give information of damage initiation prior to catastrophic failure. Electronic speckle pattern shearing interferometry (ESPSI) was also able to detect sub-surface damage, and showed promise of detecting differences in strain transfer prior to any detachment failure. |
| Note de contenu : |
- DISCUSSION : Approaches to non-destructive testing of coatings - Summary of specific techniques
- EXPERIMENTAL WORK AND PRACTICAL EVALUATION : Test panels - Evaluation of electronic speckle pattern shearing interferometry - Evaluation of pulse thermography - Acoustic emission
- Table 1 : Summary of some methods for assessing adhesive performance non-destructively
- Table 2 : Potential techniques for studying different types of coating adhesion problem in four major application areas
- Table 3 : Pull-off and cross hatch results for various primed panels at two films thicknesses |
| DOI : |
10.1007/BF02699568 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699568.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5411 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B3 (09/2005) . - p. 163-170
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