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The Elusory Role of Low Level Doping Transition Metals in Lead Silicate Glasses

The Elusory Role of Low Level Doping Transition Metals in Lead Silicate Glasses,10.1007/s12633-010-9053-8,Silicon,A. M. Abdelghany

The Elusory Role of Low Level Doping Transition Metals in Lead Silicate Glasses  
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A deconvolution method based iterative system was employed for the analysis of Infrared (IR) absorption spectra of some prepared lead silicate unfilled glasses together with samples filled with a low doping level of one of the first 3d-transition metal oxides (TMO’s) (TiO2→CuO) in the region of 4,000-400 cm-1. The IR spectra were analyzed to determine, evaluate, differentiate the various vibrational modes and to retrace precisely the role of low level doping of the different TMO’s in the structural changes. The first examination reveals a close similarity between the different transition metals doped samples, but careful inspection indicates there are some minor differences depending on the type of TM ions. These observed data are correlated with the similarity of the 3d orbitals in the neutral atoms and when the atoms are ionized. It was also observed that the 3d orbitals become more stable than the 4s orbitals.
Journal: Silicon , vol. 2, no. 3, pp. 179-184, 2010
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