کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1490606 992329 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New chalcogenide glasses in the CdTe–AgI–As2Te3 system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
New chalcogenide glasses in the CdTe–AgI–As2Te3 system
چکیده انگلیسی

Chalcogenide glasses in the pseudo-ternary CdTe–AgI–As2Te3 system were synthesized and the glass-forming range was determined. The maximum content of CdTe in this glass system was found to be equal to 15 mol.%. The macroscopic characterizations of samples have consisted in Differential Scanning Calorimetry, density, and X-ray diffraction measurements. The cadmium telluride addition does not generate any significant change in the glass transition temperature but the resistance of binary AgI–As2Te3 glasses towards crystallisation is estimated to be decreasing on the base of ΔT = Tx − Tg parameter. The total electrical conductivity σ was measured by complex impedance spectroscopy. First, the CdTe additions in the (AgI)0.5(As2Te3)0.5 host glass, (CdTe)x(AgI)0.5−x/2(As2Te3)0.5−x/2 lead to a conductivity decrease at x ≤ 0.05. Then, the behaviour is reversed at 0.05 ≤ x ≤ 0.15. The obtained results are discussed by comparison with the equivalent selenide system.

Figure optionsDownload as PowerPoint slideHighlights
► Determination of the glass-forming region in the pseudo-ternary CdTe–AgI–As2Te3 system.
► Characterization of macroscopic properties of the new CdTe–AgI–As2Te3 glasses.
► Characterization of the total conductivity of CdTe–AgI–As2Te3 glasses.
► Comparison between the selenide and telluride equivalent systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 47, Issue 2, February 2012, Pages 193–198
نویسندگان
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