کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1477034 991170 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molten salt synthesis of zinc aluminate powder
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Molten salt synthesis of zinc aluminate powder
چکیده انگلیسی

ZnAl2O4 powder was synthesised by reacting equimolar ZnO and Al2O3 powders in alkaline chlorides (LiCl, NaCl or KCl). Formation of ZnAl2O4 started at about 700 °C in LiCl and 800 °C in NaCl and KCl. With increasing temperature, the amounts of ZnAl2O4 in the resultant powders increased with a concomitant decrease of ZnO and Al2O3. ZnAl2O4 powder was obtained by water-washing the samples heated for 3 h at 1000 °C (LiCl) or 1050 °C (NaCl and KCl). ZnAl2O4 formed in situ on Al2O3 grains from the surface inwards. The synthesised ZnAl2O4 grains retained the size and morphology of the original Al2O3 powders, indicating that a template formation mechanism dominated formation of ZnAl2O4 by molten salt synthesis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 27, Issue 12, 2007, Pages 3407–3412
نویسندگان
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