کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1458991 989587 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acceptor doping effects in (K0.5Na0.5)NbO3 lead-free piezoelectric ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Acceptor doping effects in (K0.5Na0.5)NbO3 lead-free piezoelectric ceramics
چکیده انگلیسی
In this paper, the effects of acceptor dopants on the synthesis, sintering and properties of KNN ceramics were studied for (K0.5Na0.5)(Nb0.994A0.006)O3−δ (A=Ge4+, Ga3+, Zn2+, Mn2+, Ni2+, and Cu2+) ceramics. The results reveal that the eutectic phase(s) is (are) formed between the acceptor oxide and alkali metal carbonate, thereby significantly improving the sinterability of the materials. Compared to the trivalent and tetravalent acceptor dopants, divalent dopant can lead to higher Qm values, most likely due to the formation of defect complexes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 2, Part A, 1 February 2016, Pages 2899-2903
نویسندگان
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