Cracking behavior of thin gold strip deposited on polycarbonate plate under Cyclic and stepwisely-increased tension

Naoya Tada, Yafei Hu, Takeshi Uemori, Toshiya Nakata

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Thin metal films deposited on polymers have been attracting much attention in flexible electronics. Various combinations of film and polymer substrate are expected to be developed. In this paper, deformation and fracture of thin metal film on polymer substrate was briefly analysed and the influencing factors were summarized. After that, focusing on the shape and thickness of thin metal film on polymer substrate, cracking behavior of small rounded-rectangular thin gold films called "strips" with a thickness less than one micrometer was observed under cyclic and stepwisely-increased trapezoidal tensions. The strips were deposited on a polycarbonate plate specimen, and wide and narrow strips with different thickness were prepared for the tests. The cracking behaviour was successfully observed and the increasing rate of crack number with the load or strain was examined. Since most cracks were initiated from the small defects, the crack initiation behavior was correlated with the distribution of defects.

Original languageEnglish
Article number01004
JournalMATEC Web of Conferences
Volume108
DOIs
Publication statusPublished - May 31 2017
Event2017 International Conference on Mechanical, Aeronautical and Automotive Engineering, ICMAA 2017 - Malacca, Malaysia
Duration: Feb 25 2017Feb 27 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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