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Effect of tungsten metal particle sizes on the solubility of molten alloy melt: Experimental observation of Gibbs-Thomson effect in nanocomposites
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10.1063/1.4754546
/content/aip/journal/apl/101/12/10.1063/1.4754546
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754546

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM secondary electron image of initial W particles under 3.5 μm in average size. (b) SEM backscattered electron image obtained from the polished cross section of Hf-based alloy ribbon reinforced by 10 vol. % of W (sample 1). (c) Chemical composition analysis result with elemental profile corresponded to the arrow mark on (b) by WDS.

Image of FIG. 2.
FIG. 2.

(a) SEM secondary image of initial W particles under 20 nm in average size. (b) SEM backscattered electron image obtained from the polished cross section of Hf-based alloy ribbon reinforced by 10 vol. % of W (sample 2). (c) Chemical composition analysis result with elemental profile corresponded to the arrow mark on (b) by WDS.

Image of FIG. 3.
FIG. 3.

SEM image obtained from the polished cross section of Hf-based amorphous alloy ribbon synthesized by melt spinning reinforced by 10 vol. % of W. (a) The size of W particle with 3.5 μm (sample 1) shows partially transformed HfW2 intermetallic phase in arrow mark. (b) The size of W particle with 20 nm (sample 2) shows fully transformed HfW2 intermetallic phase. (c) DSC traces obtained during constant-rate heating 40 K/min for the single-phase Hf44.5Cu27Ni13.5Nb5Al10 amorphous alloy and the Hf-based amorphous alloy reinforced W composites containing 10 vol. % W with 3.5 μm (sample 1) and with 20 nm (sample 2), respectively. (d) XRD diffraction patterns taken from the Hf-based amorphous alloy reinforced W composites containing 10 vol. % W with 3.5 μm (sample 1) and with 20 nm (sample 2), respectively.

Image of FIG. 4.
FIG. 4.

Effect of W particle sizes on the solubility in Hf-based alloy solid solution.

Tables

Generic image for table
Table I.

Composition distributions of selected area obtained from micrometer size and nanometer size W particles reinforced Hf44.5Cu27Ni13.5Nb5Al10 (at.%) metallic glass ribbons synthesized by melt spinning.

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/content/aip/journal/apl/101/12/10.1063/1.4754546
2012-09-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of tungsten metal particle sizes on the solubility of molten alloy melt: Experimental observation of Gibbs-Thomson effect in nanocomposites
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4754546
10.1063/1.4754546
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