Dislocation plasticity of Al film on polyimide investigated by cross-sectional in situ transmission electron microscopy straining

Autor(en)

Sang Ho Oh, Christian Rentenberger, Jiseong Im, Christian Motz, Daniel Kiener, Hans-Peter Karnthaler, Gerhard Dehm

Abstrakt

Tensile straining of a cross-sectional Al/polyimide was performed in a transmission electron microscope. The tensile deformation of Al was accomplished mainly by dislocations emitted from the film surface, which glide and impinge on the Al/polyimide interface. During further straining the interfacial dislocations disappeared, indicating dislocation core spreading, whereas threading dislocations moved towards the film surface. While the Al/polyimide interface remains flat and becomes depleted of dislocations, the Al surface becomes increasingly rough accompanied by a noticeable increase in dislocation density.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Pohang University of Science and Technology (POSTECH), Österreichische Akademie der Wissenschaften (ÖAW), Montanuniversität Leoben

Journal

Scripta Materialia

Band

65

Seiten

456-459

Anzahl der Seiten

4

ISSN

1359-6462

DOI

https://doi.org/10.1016/j.scriptamat.2011.06.001

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie, 210006 Nanotechnologie, 103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4293e8ca-014b-4f78-9626-b208c254a649