کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486138 1510555 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chromium phase behavior in a multi-component borosilicate glass melt
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Chromium phase behavior in a multi-component borosilicate glass melt
چکیده انگلیسی

This paper reports the phase behavior of a multi-component borosilicate glass melt with 0–3 mass% Cr2O3 at 800–1500 °C in equilibrium with air. Both upper and lower liquidus temperatures were observed. When the temperature was between the upper and lower liquidus temperatures, eskolaite (Cr2O3) formed in melts with >2 mass% Cr2O3. Below the lower liquidus temperature, a dispersed chromate phase appeared in the melt that eventually became macroscopically segregated. The chemical durability of the glasses was virtually unaffected by chromium concentration. The particular glass studied was prototypic for vitrifying high-Cr high-level radioactive wastes stored in underground tanks at the Hanford site. The results suggest a significant potential cost benefit for Hanford tank waste cleanup through increased waste solubility in glass.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 21–22, 1 July 2006, Pages 2114–2122
نویسندگان
, , , , ,