کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1485698 991668 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-scale structural inhomogeneities of CuI-Cu2MoO4 superionic conducting glass observed by high resolution transmission electron microscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Nano-scale structural inhomogeneities of CuI-Cu2MoO4 superionic conducting glass observed by high resolution transmission electron microscopy
چکیده انگلیسی
Nano-meter sized structural inhomogeneities of (CuI)0.52-(Cu2MoO4)0.48 superionic conducting glass were investigated by high resolution transmission electron microscopy. The as-quenched sample of CuI-Cu2MoO4 is a homogeneous glass, in which the CuI component is finely and uniformly dispersed among the oxyanions of Cu2MoO4 glassy matrix. A two-step crystallization, starting at 440 and 495 K, was observed in the glass. After the first step crystallization, precipitating nano-crystalline cubic CuI 2-3 nm in diameter, the electrical conductivity increases by about 50%. On the other hand, the electrical conductivity decreases with the second crystallization event forming crystalline phases of CuI, Cu2O and others 20-30 nm in diameter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issue 3, 1 March 2007, Pages 302-307
نویسندگان
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