THE INFLUENCE OF EXTERNAL DISTURBANCE ON BUCKLING PATTERNS IN WEDGE-SHAPED Fe FILMS

Author:

ZHOU HONG1,YU SEN-JIANG1,ZHANG YONG-JU2,CHEN MIAO-GEN1

Affiliation:

1. Department of Physics, China Jiliang University, Hangzhou 310018, P. R. China

2. Department of Physics, Taizhou University, Linhai 317000, P. R. China

Abstract

A wedge-shaped iron (Fe) film system, quenched by silicone oil during deposition, has been prepared on glass substrates by direct current magnetron sputtering, and the influence of external disturbance on buckling patterns is investigated. The experiment shows that the wedge-shaped Fe film possesses a high compressive stress, which is relieved by spontaneous formation of telephone cord buckles in the atmosphere condition. The growth process can last several days to more than a month. When the film is disturbed by an external force, the stored stress energy will release drastically to form straight-sided buckles within several seconds. The morphological characteristics, edge effect and formation mechanism of the straight-sided buckles are discussed in detail.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

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