کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1634236 1516778 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rheological Properties of Nuclear Glass Melt Containing Platinum Group Metals
ترجمه فارسی عنوان
خصوصیات رئولوژیک فلزات پلاتین حاوی ذوب شیشه ای ذوب شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
Dispersions of undissolved palladium or ruthenium in nuclear glass can affect the glass flow during the vitrification process. As a consequence, one of the major challenges in nuclear glass elaboration is to understand and control the rheological behavior of glass melts. In this context, this work aims at describing accurately the rheological behavior of glass melts containing platinum group metals to better model the thermal hydraulics in vitrification process. A Searle viscometer has been used to characterize the non-Newtonian behavior of nuclear glass melt containing these noble metals versus temperature and shear rate. Obtained data have been compared to different reference models (Bingham, Ostwald …) in order to find the appropriate relation describing rheological behavior of nuclear glass melts. The specific role of low shear rates on viscosity measurements has been highlighted. Finally, another investigation under a constant low shear rate has been performed at high temperature during a few hours with the view to clarify this role and the associated physical phenomenon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Materials Science - Volume 7, 2014, Pages 156-162
نویسندگان
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