کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486196 1510560 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Raman and optical reflection spectra of germanate and silicate glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Raman and optical reflection spectra of germanate and silicate glasses
چکیده انگلیسی

Germanate and phosphosilicate glasses made in oxygen surplus conditions were studied by Raman and optical reflection methods. We found that the optical reflection spectra of the germanate glasses are quite similar to the one those of a GeO2 crystal with the α-quartz structure. The reflection of phosphosilicate glasses is very close to silica glass-related spectra. Hence, the determining influence of the tetrahedral structure on reflection spectra is revealed. The Raman spectra of germanate samples are similar to those reported the one known in the literature. Octahedral entities, namely bands similar to stishovite vibration modes, were difficult to detect in phosphosilicate glasses through Raman spectroscopy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 46–48, 15 November 2005, Pages 3640–3643
نویسندگان
, ,