کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1448752 988682 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural evolution and physical properties of Bi1−xGdxFeO3 ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Structural evolution and physical properties of Bi1−xGdxFeO3 ceramics
چکیده انگلیسی

The crystal structure and physical properties of Bi1−xGdxFeO3 ceramics with x ≤ 0.5 have been studied by X-ray diffraction, differential scanning calorimetry, dielectric and magnetic measurements. Bi1−xGdxFeO3 compounds crystallize at room temperature in R3c structure for x < 0.08 and in Pbnm structure for x ≥ 0.3. The R3c phase transforms to the Pbnm phase as temperature increases. Temperature-dependent dielectric response and low-temperature X-ray diffraction indicate a phase transition of the Pbnm phase at low-temperature. Detailed structural analysis indicates that the interaction between Bi and O plays an important role in the evolution of structure and physical properties. A phase diagram is constructed to illustrate the physical property–composition–temperature relations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 58, Issue 10, June 2010, Pages 3701–3708
نویسندگان
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