Investigation on the formation of Cu-Fe nano crystalline super-saturated solid solution developed by mechanical alloying
Journal of Alloys and Compounds
380 - 388
Item Usage Stats
In this study, the formation of super saturated solid solution in the binary Cu-Fe system was investigated. Three powder blends with 30, 50 and 70 wt.% of Fe were milled for different times to 96 h. The variations of lattice parameter and inter-planar spacing were calculated and analyzed using X-ray diffraction analysis (XDA). The anisotropy of lattice deformation in the FCC phase was studied and the obtained results were compared to milled pure Cu powder. Furthermore, crystallite size was calculated using Scherer formula in comparison with Rietveld full profile refinement method. Considering the previous studies about the formation of non-equilibrium FCC and BCC phases, the phase evolution has been discussed and the proportion of each phase was calculated using Rietveld refinement method. Supplementary studies on the evolution of microstructure and formation of solid solution were carried out using high resolution transmission electron microscopy (HRTEM). Finally, high angle annular dark field (HAADF) imaging was utilized to find out the level of homogeneity in the resulting phases. While true alloying takes place in each phase, the final structure consists of both FCC and BCC nano-crystallites. © 2012 Elsevier B.V. All rights reserved.
Solid solubility extension
High-angle annular dark fields
Rietveld refinement method
Solid solubility extension
Supersaturated solid solutions
High resolution transmission electron microscopy
X ray diffraction analysis
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.jallcom.2012.http://dx.doi.org/10.112
Showing items related by title, author, creator and subject.
Preparation, surface state and band structure studies of SrTi (1-X)Fe (x)O (3-δ) (x = 0-1) perovskite-type nano structure by X-ray and ultraviolet photoelectron spectroscopy Ghaffari, M.; Shannon, M.; Hui H.; Tan O.K.; Irannejad, A. (2012)In this report, SrTi (1 - x)Fe (x)O (3 - δ) photocatalyst powder was synthesized by a high temperature solid state reaction method. The morphology, crystalline structures of obtained samples, was characterized by X-ray ...
Characterization of niobium-zirconium mixed oxide as a novel catalyst for selective catalytic reduction of NO x Cayirtepe, I.; Naydenov, A.; Ivanov, G.; Kantcheva, M. (2009)The performance of mixed niobium-zirconium oxide in the SCR of NO x with propene in excess oxygen has been studied. The mixed oxide is prepared by impregnation of hydrated zirconia with acidic solution (pH 0.5) of ...
Temperature dependence of the phase of the response of YBCO edge-transition bolometers: effects of superconductivity transition and thermal parameters Fardmanesh, M.; Askerzade, İ. N. (Institute of Physics Publishing, 2003)The variation of the phase of the response of YBCO edge-transition bolometers on crystalline MgO substrate is found to be dependent on the normal-superconducting transition. The phase of the response for T < Tc increased ...