Ultra-stiff metallic glasses through bond energy density design

Journal of Physics. Condensed Matter : an Institute of Physics Journal
Volker SchnabelJochen M Schneider

Abstract

The elastic properties of crystalline metals scale with their valence electron density. Similar observations have been made for metallic glasses. However, for metallic glasses where covalent bonding predominates, such as metalloid metallic glasses, this relationship appears to break down. At present, the reasons for this are not understood. Using high energy x-ray diffraction analysis of melt spun and thin film metallic glasses combined with density functional theory based molecular dynamics simulations, we show that the physical origin of the ultrahigh stiffness in both metalloid and non-metalloid metallic glasses is best understood in terms of the bond energy density. Using the bond energy density as novel materials design criterion for ultra-stiff metallic glasses, we are able to predict a Co33.0Ta3.5B63.5 short range ordered material by density functional theory based molecular dynamics simulations with a high bond energy density of 0.94 eV Å(-3) and a bulk modulus of 263 GPa, which is 17% greater than the stiffest Co-B based metallic glasses reported in literature.

References

Dec 15, 1985·Physical Review. B, Condensed Matter·M L Cohen
Apr 15, 1988·Physical Review. B, Condensed Matter·A Banerjea, J R Smith
Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Aug 30, 2006·Ultramicroscopy·K ThompsonB Gorman
May 10, 2011·The Journal of Physical Chemistry. a·Volker L DeringerRichard Dronskowski
Nov 8, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·C HostertJ M Schneider
Sep 12, 2013·Journal of Computational Chemistry·Stefan MaintzRichard Dronskowski
Oct 30, 2013·Scientific Reports·Bo XuYongjun Tian
Jul 22, 2014·Angewandte Chemie·Volker L DeringerRichard Dronskowski
Feb 25, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Volker SchnabelJochen M Schneider
Nov 8, 2016·Scientific Reports·Volker SchnabelJochen M Schneider

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