| Titre : |
Characterization of surface structures by mechanical and optical Fourier spectra |
| Type de document : |
texte imprimé |
| Auteurs : |
Michael Osterhold, Auteur ; Kornelia Armbruster, Auteur |
| Année de publication : |
1995 |
| Article en page(s) : |
p. 32-35 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Peinture Feuil Caractérisation 'Structure surface' Rugosité Texturation 'Faisceau laser' 'Spectrométrie Fourier' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In order to investigate the influence of substrate texture on coating appearance, sheet metal and painted substrates are characterized by mechanical profilometry (Hommeltester T 4000) and by optical measurements (wave-scan, Byk). Two different kinds of substrates (laser textured sheets and sheets with different roughness levels) coated with electrodeposition paint, primer-surfacer and automotive top coat are studied. The measured surface profiles of the painted and unpainted sheets are analyzed by Fourier transform yielding the so-called autopower spectrum (square of amplitudes versus wavelength) of the investigated surface. The obtained spectra are studied with regard to characteristic wavelengths dominating the detected surface profiles. Cross-power spectra are used to describe the influence of substrate texture on top coat structure. The mechanical investigations are compared to the optical measurements. |
| Note de contenu : |
- Experimental: Substrates and paint systems - Mechanical surface characterization - Fourier analysis - Optical surface characterization
- Measurements : Laser textured surfaces - Mechanical and optical measurements on top coats |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11269 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 1-2/95 (01-02/1995) . - p. 32-35
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Characterization of surface structures by mechanical and optical Fourier spectra in EUROPEAN COATINGS JOURNAL (ECJ), N° 1-2/95 (01-02/1995)
