کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483162 1645410 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The coordination number calculation from total structure factor measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The coordination number calculation from total structure factor measurements
چکیده انگلیسی

In the structural characterization of amorphous materials, the knowledge of the correlation distances and coordination numbers has a key importance. When several correlation distances overlap in the same diffractogram, obtaining the coordination numbers is a quite difficult task. In this work the method to obtain coordination numbers from total structure factor measurements is described in detail. The procedure is focussed in neutron diffraction experiments, but it is also applicable for X-ray diffraction. In order to illustrate the method, it was chosen as example a chalcogenide glass (Ag25Ge18.75Se56.25)(Ag25Ge18.75Se56.25), a member of a series of ionic conductors that have been studied by neutron diffraction. In particular, the coordination numbers corresponding to the first diffraction peak, involving Ge–Se and Se–Se correlations, are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 37–42, 1 October 2009, Pages 1811–1814
نویسندگان
, , , ,