کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486687 1510563 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-temperature synthesis of pure BaAl2Si2O8 glass–ceramic powder by citrate process
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Low-temperature synthesis of pure BaAl2Si2O8 glass–ceramic powder by citrate process
چکیده انگلیسی

The citrate process was successfully used to prepare a glass–ceramic powder with the stoichiometric composition of BaAl2Si2O8 (BAS2). The solutions of barium and aluminum nitrate, colloidal silica, citric acid, and diethylene glycol were combined and afforded a clear gel on mixing which was further decomposed on heating to an easily handled precursor in a powder form. The characteristics of this dried precursor were analyzed by X-ray powder diffraction (XRD), differential thermal (DTA) and thermal gravimetric (TGA), and thermal mechanical analyses (TMA). An intermediate grinding of the precursor is crucial for the successful synthesis of the hexagonal BaAl2Si2O8 directly from the precursor which was crystallized at temperature as low as 850 °C for 4 h calcination.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 37–39, 1 October 2005, Pages 3044–3049
نویسندگان
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