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Preparation and Characterisation of Nickel Nanoparticles

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Nickel (Ni) nano particles have been prepared by high-energy ball milling process. The milled powder has been characterized by X-ray diffraction and Transmission Electron Microscopy measurements. The lattice strain in nickel (Ni) nanopowder produced by milling has been analyzed by X-ray powder diffraction. The lattice strain (ε) and Debye-Waller factor (B) have been determined from the half-widths and integrated intensities of the Bragg reflections. Debye-Waller factor is found to increase with the lattice strain. From the correlation between the strain and effective Debye-Waller factor, Debye-Waller factors for zero strain have been estimated for Ni. The variation of energy of vacancy formation, as a function of lattice strain has been studied.
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Keywords: DEBYE-WALLER FACTOR; LATTICE STRAIN; PARTICLE SIZE; VACANCY FORMATION ENERGY; X-RAY DIFFRACTION

Document Type: Research Article

Publication date: June 1, 2014

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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