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Nearly full density Ni52.5Nb10Zr15Ti15Pt7.5 bulk metallic glass obtained by spark plasma sintering of gas atomized powders
Ni-based bulk metallic glasses (BMGs) with a large size were fabricated by spark plasma sintering (SPS) of a gas-atomized Ni52.5Nb10Zr15Ti15Pt7.5 glassy alloy powder. The structure and thermal stabili...
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Spontaneous formation of one-dimensional ripples in transit to highly ordered two-dimensional herringbone structures through sequential and unequal biaxial mechanical stretching

Appl. Phys. Lett. 90, 241903 (2007); doi:10.1063/1.2743939

Published 12 June 2007

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Pei-Chun Lin and Shu Yang
Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, Pennsylvania 19104
The authors report the formation of various submicron wrinkle patterns and their transition from one-dimensional (1D) ripples to two-dimensional (2D) herringbone structures on poly(dimethylsiloxane) films. Using mechanical force they can separately control the amount and timing of strain applied to the substrate on both planar directions (either simultaneously or sequentially), which appears to be critical to maneuver the pattern formation in real time. They demonstrate reversible transitions from flat to 1D ripple, to ripple with bifurcation, to ripple/herringbone mixed features, and to well-controlled formation of a highly ordered zigzag-based 2D herringbone structures. ©2007 American Institute of Physics
History: Received 10 April 2007; accepted 7 May 2007; published 12 June 2007
Permalink: http://link.aip.org/link/?APPLAB/90/241903/1
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KEYWORDS and PACS

Keywords
PACS
  • 64.70.Kb
    Solid–solid transitions
  • 68.65.-k
    Low-dimensional, mesoscopic, and nanoscale systems: structure and nonelectronic properties
  • YEAR: 2007

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ISSN:
0003-6951 (print)   1077-3118 (online)
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