Ordering of spontaneously formed buckles on planar surfaces

Citation
Wts. Huck et al., Ordering of spontaneously formed buckles on planar surfaces, LANGMUIR, 16(7), 2000, pp. 3497-3501
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
0743-7463 → ACNP
Volume
16
Issue
7
Year of publication
2000
Pages
3497 - 3501
Database
ISI
SICI code
0743-7463(20000404)16:7<3497:OOSFBO>2.0.ZU;2-O
Abstract
This paper describes the spontaneous formation of patterns of aligned buckl es in a thin film of gold deposited on the surface of an elastomer [poly(di methylsiloxane), PDMS]. The surface of the elastomer is patterned photochem ically into areas differing in stiffness and coefficient of thermal expansi on. The gold is deposited while the surface of the patterned elastomer is w arm (T similar to 100 degrees C). On cooling, shrinkage in the elastomer pl aces the gold film under compressive stress. The buckles relieve this compr essive stress. The distribution of stresses and buckle patterns is describe d during the pre- and postbuckling regimes using solutions from calculation s describing a model comprising a thin stiff plate resting on a thick elast ic foundation.