Study of delamination of thin film coating on cyclic nano-indentation test

Kentaro Kozuki, Masaki Omiya, Kikuo Kishimoto, Hirotsugu Inoue

研究成果: Conference article

1 引用 (Scopus)

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The aim of this paper is to evaluate the cyclic interfacial strength between thin film and its substrate by cyclic nano-indentation tests. The specimen used in this study is PET substrate/ITO coatings layered specimen. From the indentation load and displacement curve, we proposed an evaluation method for the interfacial strength. The results are good agreement with the interfacial strength evaluated by peel test. After cyclic indentations, the surface profile was observed by atomic force microscope. The number of elongates increased with indentation cycles when the indentation load is low, whereas elongates number is almost constant under high load cases. These phenomena can be explained by simple models. In this study, two types of fracture modes are proposed. They are "subsidiary fracture mode" and "buckling mode".

元の言語English
ページ(範囲)1842-1845
ページ数4
ジャーナルKey Engineering Materials
353-358
発行部数PART 3
DOI
出版物ステータスPublished - 2007 1 1
外部発表Yes
イベントAsian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China
継続期間: 2006 11 222006 11 25

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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