| Titre : |
Micro- and nano-indentation and scratching for evaluating the mar resistance of automotive clearcoats |
| Type de document : |
texte imprimé |
| Auteurs : |
Jeanne L. Courter, Auteur ; Eduardo A. Kamenetzky, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 24-38 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
To guide the development of mar resistant coatings, new test instruments and test methods are under development. The efforts seem to have begun from two points: first indentation and scratching for studying wear, and second atomic force microscopy. Several of these micro- and nano-scale methods were compared by testing a series of hydroxy-functional acrylic/melamine-formaldehyde coatings having a wide range of mar resistance. A Fischer-scope H100' was used to do micro-scale instrumented indentation, a Triboscope' was used to do nano-indentation and nano-scratching, and a prototype micro-scale scratch tester was used to do scratch tests. Universal hardness, creep rate and residual indentation depth were self-correlated. Mar resistance was best when universal hardness was lowest. Micro-scratching was found to reveal qualitative differences that correlated with mar resistance, including resistance to cracking during scratching. |
| Note de contenu : |
- What mar resistance is
- Coating compositions
- Laboratory mar resistance tests
- Level of variation in laboratory mar resistance test
- Comparison of the two laboratory mar resistance test results
- Characterization of damage from laboratory mar resistance tests
- Micro-scale instrumented indentation
- Stylus tests - Introduction
- Nanoindentation and nanoscratching
- Nano-indentation
- Nano-scratching
- Micro-scratching |
| En ligne : |
https://drive.google.com/file/d/1-qow2oSItR1KBsSQOHmLHw4eGljg2z4k/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11200 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8/99 (07-08/1999) . - p. 24-38
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