4.2 Article

Correlation of mechanical properties in bulk metallic glasses with 27Al NMR characteristics

Journal

CHINESE SCIENCE BULLETIN
Volume 56, Issue 36, Pages 3937-3941

Publisher

SCIENCE PRESS
DOI: 10.1007/s11434-011-4834-z

Keywords

bulk metallic glass; nuclear magnetic resonance; knight shift; magnetic susceptibility; mechanical properties

Funding

  1. U. S. Army Research Office [W911NF-09-1-0343]

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We report Al-27 NMR and magnetic susceptibility measurements of Zr and ZrHf-based bulk metallic glasses (BMGs). Al-27 NMR Knight shift shows that there exists a clear correlation between the local electronic properties at Al sites and mechanical properties. In addition, magnetic susceptibility measurements also provide clues on the influence of the electronic states, especially the strong influence of d-orbital characteristics on the mechanical properties of toughness and hardness.

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