کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1491914 992363 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solution combustion synthesis of MgAl2O4 using fuel mixtures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Solution combustion synthesis of MgAl2O4 using fuel mixtures
چکیده انگلیسی

The paper reveals a new perspective concerning the rational fuel selection and the logical elaboration of the recipes for the MgAl2O4 solution combustion synthesis. It was shown that Mg(NO3)2·6H2O and Al(NO3)3·9H2O exhibit different behavior with respect to urea, glycine and β-alanine. Urea proved to be the most adequate fuel for Al(NO3)3·9H2O, while β-alanine proved to be the most appropriate fuel for Mg(NO3)2·6H2O. Considering that there is a predilection of metal nitrates with respect to these fuels, in the case of MgAl2O4 combustion synthesis best results were achieved when fuel mixtures (urea and β-alanine, urea and glycine) were used. The use of fuel mixtures allowed the formation of pure, nanocrystalline MgAl2O4 directly from the combustion reaction, without any subsequent annealing step. The use of a single fuel (urea, glycine or β-alanine) led to the formation of an amorphous powder, which required further annealing in order to achieve the formation of crystalline MgAl2O4.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 43, Issue 12, 1 December 2008, Pages 3408–3415
نویسندگان
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