論文

査読有り
2010年7月

Evaluation of incipient plasticity from interfaces between ultra-thin gold films and compliant substrates

THIN SOLID FILMS
  • Hiroyuki Hirakata
  • ,
  • Hiroki Ogiwara
  • ,
  • Akio Yonezu
  • ,
  • Kohji Minoshima

518
18
開始ページ
5249
終了ページ
5256
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.tsf.2010.04.069
出版者・発行元
ELSEVIER SCIENCE SA

Nanoindentation experiments were conducted for 30 nm-thick Au films on two types of substrates, polyimide (compliant) and glass (stiff), to clarify the dominant mechanics of incipient plasticity from the interface. A high resolved shear stress T(r) could be effectively applied to the Au/polyimide interface due to the compliant substrate, and plastic deformation was initiated at the interface. The critical resolved shear stress T(crss) at the interface was determined to have a value of 0.4 similar to 0.5 GPa. On the other hand, in Au/glass, T(r) peaked within the Au film, and the maximum values were 1.1 similar to 2.2 GPa depending on the tip radius, whereas the values of T(r) at the Au/glass interface were almost identical at 0.5 similar to 0.7 GPa. Therefore, plastic deformation might be initiated from the Au/glass interface. The values of T(crss), for heterogeneous nucleation at the interfaces were smaller than that for homogeneous nucleation in the Au films. (C) 2010 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.tsf.2010.04.069
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000279659900038&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.tsf.2010.04.069
  • ISSN : 0040-6090
  • Web of Science ID : WOS:000279659900038

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