Abstract
In this study we combined nanoindentation techniques with mechanics-based models to determine interfacial fracture energies in a 16 μm thick styrene-acrylate film on T-6061 aluminum sheet and a 1.6 μm thick Epon 828/T403 epoxy film on sputtered aluminum. For the styrene-acrylate film, interfacial fracture occurred at a fracture energy of 8.9 J/m2. The epoxy film failed much more readily with a fracture energy of 0.2 J/m2. However, the addition of an adhesion-promoting interlayer improved the epoxy film performance to the point where the films did not fail even when the indentations exceeded the film thickness.
| Original language | English (US) |
|---|---|
| Pages (from-to) | FF5.13.1-FF5.13.6 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 629 |
| State | Published - 2000 |
| Event | Interfaces, Adhesion and Processing in Polymer Systems - San Francisco, CA, United States Duration: Apr 24 2000 → Apr 27 2000 |
Bibliographical note
Funding Information:The authors gratefully acknowledge the support of U.S. DOE Contract DE-AC04-94AL85000. A. Strojny and W. W. Gerberich also acknowledge the support of the Center for Interfacial Engineering at the University of Minnesota under grant NSF/CDR-8721551.