Metallic glass nanostructures of tunable shape and composition

Yanhui Liu (), Jingbei Liu, Sungwoo Sohn, Yanglin Li, Judy J. Cha and Jan Schroers ()
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Yanhui Liu: Center for Research on Interface and Surface Phenomena, Yale University
Jingbei Liu: Center for Research on Interface and Surface Phenomena, Yale University
Sungwoo Sohn: Center for Research on Interface and Surface Phenomena, Yale University
Yanglin Li: Center for Research on Interface and Surface Phenomena, Yale University
Judy J. Cha: Center for Research on Interface and Surface Phenomena, Yale University
Jan Schroers: Center for Research on Interface and Surface Phenomena, Yale University

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Metals of hybrid nano-/microstructures are of broad technological and fundamental interests. Manipulation of shape and composition on the nanoscale, however, is challenging, especially for multicomponent alloys such as metallic glasses. Although top–down approaches have demonstrated nanomoulding, they are limited to very few alloy systems. Here we report a facile method to synthesize metallic glass nanoarchitectures that can be applied to a broad range of glass-forming alloys. This strategy, using multitarget carousel oblique angle deposition, offers the opportunity to achieve control over size, shape and composition of complex alloys at the nanoscale. As a consequence, nanostructures of programmable three-dimensional shapes and tunable compositions are realized on wafer scale for metallic glasses including the marginal glass formers. Realizing nanostructures in a wide compositional range allows chemistry optimization for technological usage of metallic glass nanostructures, and also enables the fundamental study on size, composition and fabrication dependences of metallic glass properties.

Date: 2015
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DOI: 10.1038/ncomms8043

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