Abstract
Yield stress and modulus of polymeric coatings on polyethylene terephthalate (PET) film have been measured by nanomechanical methods. Yield stresses were found with a simplified version of Johnson's cavity model of elastic-plastic indentation and Tabor's approximation. Moduli were obtained by the tangent method. From creep and relaxation measurements, viscoelastic moduli were extracted with the aid of the standard three-parameter model.
Original language | English (US) |
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Pages (from-to) | 199-204 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 522 |
State | Published - Dec 1 1998 |