کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1788269 1023465 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electric field-induced strain of lead-free Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3 ceramics modified with LiTaO3
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electric field-induced strain of lead-free Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3 ceramics modified with LiTaO3
چکیده انگلیسی

The phase diagram of ternary (1−x−y) Bi0.5Na0.5TiO3−x Bi0.5K0.5TiO3−yLiTaO3 (BNT−BKT−LT) ceramics was investigated within the range of x = 0–0.4 and y = 0–0.1 via analyses on their crystal structure, dielectric and field-induced strain properties. BNT-rich compositions revealed ferroelectric rhombohedral symmetry (FER: x < 0.18 and y < 0.04) while BKT modified BNT ceramics transformed into ferroelectric tetragonal symmetry (FET; x > 0.18 and y < 0.02). However, LT modification of BNT–BKT ceramics induced a phase transition to nonpolar pseudocubic symmetry (NPPC; x = 0–0.4 and y > 0.04). At phase boundaries between these three regions, the coexistence of two or three phases was observed. Interestingly, the electric field-induced strain was markedly enhanced at the ferroelectric-nonpolar phase boundary.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 11, Issue 3, Supplement, May 2011, Pages S134–S137
نویسندگان
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