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Formation of Metallic Glass Nanowires by Gas Atomization
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Formation of Metallic Glass Nanowires by Gas Atomization Koji S. Nakayama,*,† Yoshihiko Yokoyama,‡ Takeshi Wada,‡ Na Chen,† and Akihisa Inoue‡ †World Premier Institution-Advanced Institute for Materials Research, and ‡Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan ABSTRACT: Gas atomization which is a conventional technique in powder metallurgy is adapted for the formation of metallic glass nanowires. This approach is able to produce a large quantity of nanowires with diameters in the 50−2000 nm range. Experiments performed with different conditions and alloy compositions confirm that the key mechanism of the nanowire formation is the spinnability which increases exponentially when the melt stream is supercooled from the liquid state. KEYWORDS: Nanowire, metallic glass, gas atomization, spinnability |
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2014-12-18 14:39:37, 1.03 M
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