کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9761594 1498420 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical properties and crystallization processes in AgI-Ag2O-P2O5, [Ag2O]/[P2O5] = 3, glasses
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Electrical properties and crystallization processes in AgI-Ag2O-P2O5, [Ag2O]/[P2O5] = 3, glasses
چکیده انگلیسی
The effect of crystallization processes in the xAgI·0.75(100 − x)Ag2O·0.25(100 − x)P2O5, 50 ≤ x ≤ 75, glasses on the ionic conductivity was investigated, using impedance spectroscopy, X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). The crystallization was induced and promoted by thermal processing. It was found out that depending on annealing conditions, the conductivity could be enhanced or lowered. The conductivity enhancement is observed when the glass is annealed near the glass transition temperature Tg for relatively short time. In this case, the XRD patterns do no indicate the presence of crystalline phases. The decrease of conductivity is observed for more pronounced crystallization, detectable by X-ray diffraction. The annealing does not affect the activation energy of ionic conductivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 19–22, June 2005, Pages 1775-1779
نویسندگان
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