کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1653396 1517344 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-temperature fabrication of 0.65 PMN–0.35 PT by a mixed oxide method
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Low-temperature fabrication of 0.65 PMN–0.35 PT by a mixed oxide method
چکیده انگلیسی

Single-phase perovskite 0.65 PMN–0.35 PT was achieved at low temperature by a conventional mixed oxide method. It was prepared by ball-milling a mixture of PbO(orthorhombic), TiO2, Nb2O5 and (MgCO3)4Mg(OH)2·5H2O instead of MgO and heat treatment at 800 °C for 2 h. The formation was studied by means of DSC, FT-IR, Coupled TG-Mass, XRD, and SEM. It proceeded via formation of PbO(tetragonal) and Pb2Nb2O7(P2N) intermediates to form perovskite phase. The pure perovskite PMN-PT powder was obtained in particle size of 0.5–0.8 μm, agglomerate-free, and pseudo-cube. The powder calcined at 600 °C was sintered to ∼97% T.D. at 900–1000 °C for 2 h and showed room temperature dielectric constant of ∼3200, loss of 1–2%, and specific resistance of ∼5 × 1011 Ω cm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 60, Issues 29–30, December 2006, Pages 3596–3600
نویسندگان
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