Investigation of specimen- and grain-size dependence of yield stress in electrodeposited nanocrystalline copper through micropillar compression

Norihiko L. Okamoto, Daisuke Kashioka, Haruyuki Inui

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The specimen-size dependence of yield stress of nanocrystalline copper with average grain size (d) of 360 nm has been investigated through uniaxial compression tests of micrometer-size pillars fabricated via the focused ion beam method. The yield stress decreases with the decrease in the micropillar size while the yield stress is almost constant for larger micropillars. The critical specimen size (t) is approximately 12.5 μm, correspoinding to the critical (t/d) value, (t/d)*, of 35, which is much larger than that for coarse-grained copper polycrystals.

本文言語English
ホスト出版物のタイトルMechanical Behavior of Metallic Nanostructured Materials
出版社Materials Research Society
ページ18-23
ページ数6
ISBN(印刷版)9781632661067
DOI
出版ステータスPublished - 2013
外部発表はい
イベント2012 MRS Fall Meeting - Boston, MA, United States
継続期間: 2012 11月 252012 11月 30

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1513
ISSN(印刷版)0272-9172

Other

Other2012 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period12/11/2512/11/30

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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