کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5437869 1398178 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase evolution, structure and microwave dielectric properties of Li2+xMg3SnO6 (x = 0.00-0.12) ceramics
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Phase evolution, structure and microwave dielectric properties of Li2+xMg3SnO6 (x = 0.00-0.12) ceramics
چکیده انگلیسی
In this study, the Li2+xMg3SnO6 (LxMS) ceramic systems were prepared by solid-state reaction using novel atmosphere-controlled sintering (x = 0.00-0.12). The influences of extra lithium contents on the phase evolution, crystal structure and microwave dielectric properties of Li2+xMg3SnO6 (LxMS) ceramics were systematically investigated. As samples were calcined from 800 to 1000 °C, the Li2Mg3SnO6 phase was formed from the chemical reaction between Li2SnO3 and MgO phase. Pure Li2Mg3SnO6 phase could be observed for samples calcined at 1000-1100 °C. But when it was exposed to high temperature air over 1100 °C, the Li2Mg3SnO6 decomposed into Mg2SnO4, MgO and Li2O. Because of the protective atmosphere and extra lithium, the εr, Q×f and τf were significantly improved by the suppression of secondary phase and pores for 0.00≤x≤0.08. However, comprehensive microwave characteristics were deteriorated for 0.08
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 16, November 2017, Pages 13645-13652
نویسندگان
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