کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1408789 1501699 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Local structure characterization and thermal properties of P2O5MgONa2OLi2O glasses doped with SiO2
ترجمه فارسی عنوان
خصوصیات ساختاری محلی و خصوصیات حرارتی شیشه های P2O5MgONa2OLi2O دوپ شده با SiO2
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی


• The effect of silica-doping on structure of P2O5MgONa2OLi2O glass is existing.
• With the increase of SiO2 content, the number of bridge oxygen increases.
• With the addition of SiO2, the polymerization degree of the structure increases.
• These glass density and molar volume gradually decline with the increasing of SiO2.
• The silica participate in the network formation, and improve the thermal stability.

Pure and SiO2 doped P2O5MgONa2OLi2O glass has been prepared by the traditional melt quenching and heat treatment techniques. Via X-ray diffraction (XRD) patterns, all the samples are proved to be amorphous. Field emission scanning electron microscopy (FESEM) and macroscopic observation show that all the samples are homogeneous glasses and no phase splitting phenomenon. Fourier transform infrared (FTIR) spectrum shows that the amount of non-bridging oxygen decreases and the polymerization degree of the glass network structure increases after introducing SiO2 into glasses. Meanwhile, density and molar volume gradually decline with the increasing of SiO2. The glass transition (Tg) and the first crystallization temperature (Tc) indicates thermal stability increases in SiO2 added glasses.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1118, 15 August 2016, Pages 42–47
نویسندگان
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