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The mixed alkali silicate glasses doped 0.1 mol% Fe₂O₃ are fabricated for studying the effect of transition metal oxides, which is related to the Li ion movement in Magic-Angle-Spinning NMR. We have investigated the spin-lattice relaxation times in the room temperature and measured the `Li MAS-NMR spectrum with temperature. When the Fe₂O₃ oxides are added in alkali silicate glasses, the width of spectrum is changed a little but the line shape is hardly varied. For this reason, we can think that the mixed alkali effects are shown sufficiently in the spin-spin relaxation processes. However, it is not mixed alkali effects in this case. The activation energy of Li` ions are diminished in mixed alkali glasses. From the analysis of Li- diffusion environment, spin-lattice relaxation time and the nuclear magnetization, it is confirmed that the alkali mixed effects are not shown in `Li spin-lattice relaxation processes.
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UCI(KEPA) : I410-ECN-0101-2016-515-002300480