کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9778129 1510572 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-energy X-ray diffraction study of Ni-doped sodium metaphosphate glasses
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
High-energy X-ray diffraction study of Ni-doped sodium metaphosphate glasses
چکیده انگلیسی
The structures of four Ni-doped sodium metaphosphate glasses (NiO)x(NaPO3)1−x [x = 0.009, 0.018, 0.033 and 0.074] were investigated by high-energy synchrotron X-ray diffraction (E = 120.0 keV). With increasing NiO content the development of the first nickel-oxygen correlation could clearly be observed in the corresponding pair correlation functions. The high-resolution X-ray diffraction data enabled the separation of the first Ni-O, Na-O and O-O correlations for a-(NiO)0.074(NaPO3)0.926. The first average Ni-O distance is 2.02(2) Å and the coordination of Ni with O, which was also determined by EXAFS at the Ni K-absorption edge, is 6. Interatomic distances between phosphorus and bridging (P-OB) or non-bridging oxygen (P-OT) could be discriminated in the structures of all investigated samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 12–13, 1 May 2005, Pages 1014-1019
نویسندگان
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