کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486858 1510691 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multiferroic properties in Mn-modified 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Multiferroic properties in Mn-modified 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics
چکیده انگلیسی


• The multiferroic properties of 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics were modified by Mn doping.
• (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 and MnO2 was designed to improve the structural stability and enhance the electric properties.
• The relation between composition and electric properties was discussed.

The 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 + x wt.% MnO2 (x = 0.0–0.7) multiferroic ceramics were fabricated by a solid state reaction method. Effects of Mn doping on phase structure, microstructure, dielectric, ferroelectric, and magnetic properties were systematically investigated. It was found that all ceramics showed pseudocubic phases. Dense microstructure along with perfect grains and clear grain boundaries were obtained in all ceramics. A relaxor behavior was observed in all ceramics and Mn doping could promote this behavior. In the case of Mn modifying, significantly lower dielectric loss values along with higher Tc could be obtained compared with un-doped system. The lower leakage current density J values and relatively higher resistivity R values showed that better electric insulation was achieved by Mn modification. The optimal ferroelectric and magnetic properties were obtained at proper amount of Mn modification with x = 0.2–0.4.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 84, December 2016, Pages 25–31
نویسندگان
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