X-Ray Debye Temperature Study of Zinc Nano Particles
Zinc powder was ball milled in an argon inert atmosphere. The milled powders were characterized by X-ray diffraction and scanning electron microscopy measurements. The high-energy ball milling of Zn after 25 hours resulted in particle size of 100 nm and 150 hours 10 nm. Lattice strains in Zn powders produced by milling have been analyzed by X-ray powder diffraction. The lattice strain (ε) and Debye-Waller factor (B) are 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 factors have been estimated for Zn. The variation of energy of vacancy formation as a function of lattice strain has been studied.
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Document Type: Research Article
Publication date: June 1, 2014
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