کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7922106 1511756 2018 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
FTIR investigation and mixed cation effect of Li2O-BaO-B2O3 glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
FTIR investigation and mixed cation effect of Li2O-BaO-B2O3 glasses
چکیده انگلیسی
FTIR, density and electric conduction investigations have been carried out on the glasses xBaO⋅(30-x)Li2O⋅70B2O3 (0 ≤ x ≤ 30 mol%) and xBaO⋅(40-x)Li2O⋅60B2O3 (0 ≤ x ≤ 40 mol%). The fraction N4 of four coordinated boron atoms does not change with x and its value is around that of related binary glasses. The behavior of glasses as mixed matrices is observed in the dependence of N4, D and Vm on composition. Mixed modifier effect is observed as maxima in the activation energy for electric conduction. The maxima appear at compositions of nearly equal concentration of Li+ and Ba2+ ions. It is deduced that the mixed cation effect might be correlated with the concentration of modifier ions, rather than the modifier oxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 207, 1 March 2018, Pages 259-270
نویسندگان
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