2006•Nano LettersRequires access

Effect of the Growth Conditions on the Spatial Features of Re Nanowires Produced by Directional Solidification

Srdjan Milenković, Achim Walter Hassel, André Schneider

Abstract

The effects of the solidification parameters, such as growth rate and temperature gradient, on the distance and diameter of Re nanowires have been examined. Both the spacing and diameter increase with decreasing growth rate and temperature gradient, respectively. The ratio of fiber spacing to diameter is 9.1. In addition, it was demonstrated that the temperature gradient influences interface undercooling in the same way as the growth rate and may be used as an additional parameter to control fiber spacing and diameter.

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Key concepts: Temperature gradient, Supercooling, Nanowire, Growth rate, Materials science, Directional solidification, Fiber, Concentration gradient