Fabrication and Characterization of Gold Nano Particles
The powder samples were obtained by gently filing highly pure Au rod with a jeweler's file. A part of this powder was used to prepare the initial sample. The remaining powder was subjected to milling in a high-energy ball mill for 5, 10, 15, 20 and 25 hours to produce strains and decrease the particle size in a stainless steel chamber using tungsten carbide and zirconia balls of 10 mm φ and 3 mm φ ball sizes respectively. Characterized for its particle size, lattice strain, Debye-Waller factor, root mean square amplitudes of vibration 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.
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Document Type: Research Article
Publication date: December 1, 2014
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