TITLE

Soft ytterbium-based bulk metallic glasses with strong liquid characteristic by design

AUTHOR(S)
J. Q. Wang; W. H. Wang; H. Y. Bai
PUB. DATE
January 2009
SOURCE
Applied Physics Letters;1/26/2009, Vol. 94 Issue 4, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A family of Yb-based bulk metallic glasses with excellent glass-forming ability has been fabricated based on the elastic moduli correlations. The YbZnMg(Cu) glasses exhibit very strong liquid characteristic in fragility (m=26±5), while soft mechanical characteristics, such as low bulk elastic modulus (e.g., Young’s modulus is about 26.5 GPa), small Poisson’s ratio (0.276), low Vickers hardness (1.52 GPa) and Debye temperature, and exceptionally low glass transition temperature (Tg∼347 K). The soft bulk metallic glasses with exceptional values of Tg, fragility, Debye temperature, and elastic moduli confirm some found correlations in metallic glasses.
ACCESSION #
36435020

 

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