From “Smaller is Stronger” to “Size-Independent Strength Plateau”: Towards Measuring the Ideal Strength of Iron

Wei-Zhong Han, Ling Huang, Shigenobu Ogata, Hajime Kimizuka, Zhao-Chun Yang, Christopher Weinberger, Qing-Jie Li, Bo-Yu Liu, Xixiang Zhang, Ju Li, Evan Ma, Zhi-Wei Shan

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The trend from “smaller is stronger” to “size-independent strength plateau” is observed in the compression of spherical iron nanoparticles. When the diameter of iron nanospheres is less than a critical value, the maximum contact pressure saturates at 10.7 GPa, corresponding to a local shear stress of ≈9.4 GPa, which is comparable to the theoretical shear strength of iron.
Original languageEnglish (US)
Pages (from-to)3385-3390
Number of pages6
JournalAdvanced Materials
Volume27
Issue number22
DOIs
StatePublished - Apr 17 2015

ASJC Scopus subject areas

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

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