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Title: Morphology and aspect ratio of bismuth nanoparticles embedded in a zinc matrix

Nanoscale Bi particles embedded in a Zn matrix were obtained by casting and melt-spinning, resulting in quenching rate-dependent sizes and shapes. With decreasing Bi particle size, an increasing aspect ratio was observed. Due to high resolution transmission electron microscopy performed for different orientations of the nanoparticles and the matrix, the three-dimensional shape and the respective crystallographic orientations of the Bi nanoparticles as well as the orientation relationship with the matrix have been evaluated. It is suggested that the size-dependence of the nanoparticle morphologies has a strong impact on their thermal stabilities thus affecting the size dependence of the melting temperature.
Authors:
; ;  [1]
  1. Institute für Materialphysik, Wilhelm-Klemm-Straße 10, D-48149 Münster (Germany)
Publication Date:
OSTI Identifier:
22395526
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ASPECT RATIO; BISMUTH; MATRIX MATERIALS; MELTING POINTS; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; ORIENTATION; PARTICLE SIZE; QUENCHING; TEMPERATURE DEPENDENCE; THREE-DIMENSIONAL LATTICES; TRANSMISSION ELECTRON MICROSCOPY; ZINC