کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437517 | 1398174 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of gallium addition on physical and structural properties of Ge-S chalcogenide glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
GeS2.5 chalcogenide glass was selected for studying effects of Ga addition on physical and structural properties. Glassy and partially crystallized samples of (100âx)GeS2.5âxGa (5 mol% ⤠x ⤠40 mol%) were prepared, and their thermal and optical properties were characterized. With increasing Ga content (x), values of Tg and optical band gap of glasses initially increased and then decreased, showing a maximal value at x = 25 mol%, that is, with stoichiometric composition of 85.7GeS2·14.3Ga2S3. These changes were discussed and correlated to evolution of network structure, which was investigated by Raman spectra recorded in glassy matrices of (100âx)GeS2.5âxGa (5 mol% ⤠x ⤠40 mol%). This work contributes to understanding of composition-structure-property relationship of chalcogenide glasses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 12205-12208
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 12205-12208
نویسندگان
Erwei Zhu, Changgui Lin, Qing Jiao, Bao'an Song, Xueyun Liu, Shixun Dai,