کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1474316 991085 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies on the formation of yttrium iron garnet (YIG) through stoichiometry modification prepared by conventional solid-state method
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Studies on the formation of yttrium iron garnet (YIG) through stoichiometry modification prepared by conventional solid-state method
چکیده انگلیسی

Y3Fe5O12 (YIG) prepared by conventional solid-state method can rarely be of high purity. However, this study suggests that high purity YIG can be produced via conventional solid-state methods, through stoichiometry modification. This is achieved by adding various amounts of excess Fe2O3 to control the YIG stoichiometric ratios. In this work, ferrite and yttria were calcined at 1100 °C (for 8 h) and sintered at 1420 °C (6 h). In most samples, the formation of YIG, with YFeO3 (YIP) and/or Fe2O3 as associated phases were detected. Uniform microstructures of YIG are also observed. YIP phase in YIG is found to be inversely related to the addition of excess Fe2O3, up to 8 wt%. At above 8 wt% Fe2O3 addition, YIP disappears, leaving unreacted excess Fe2O3 as a new associated phase. From the investigation, it is safe to conclude that the purity of YIG can be increased with the addition of excess Fe2O3.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 33, Issue 7, July 2013, Pages 1317–1324
نویسندگان
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