Title of article :
Diffusion phase transition and ferroelectric properties of 0.92K0.5Na0.5NbO3–(0.08 − x)Bi0.5Li0.5TiO3–xBaZrO3 ceramics
Author/Authors :
Meixia Wu، نويسنده , , Liang Fang، نويسنده , , Laijun Liu، نويسنده , , Xiang Zhou، نويسنده , , Yanmin Huang، نويسنده , , Yunhua Li، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2012
Pages :
4
From page :
1015
To page :
1018
Abstract :
0.92K0.5Na0.5NbO3–(0.08 − x)Bi0.5Li0.5TiO3–xBaZrO3 (KNN–BLT–BZ) lead-free piezoelectric ceramics were fabricated by traditional ceramics process. XRD results showed that complete solid solutions with mixed phases of rhombohedra and tetragonal were observed. Diffusion phase transitional behavior, dielectric properties and ferroelectric properties of the KNN–BLT–BZ ceramics were investigated. It was found that the cubic-tetragonal phase transition temperature (TC) slightly decreased as the amount of BaZrO3 was increased. A morphotropic phase boundary (MPB) between rhombohedral and tetragonal ferroelectric phases was identified in the composition range of 0.04 ≤ x ≤ 0.06. Furthermore, good ferroelectric properties were also found in this composition range, with Pr of 14.5 μC cm−2 and Ec of 1.95 kV mm−1 for the sample with x = 0.04.
Keywords :
Electronic materials , Dielectric properties , Electrical characterization , Sintering
Journal title :
Materials Chemistry and Physics
Serial Year :
2012
Journal title :
Materials Chemistry and Physics
Record number :
1064121
Link To Document :
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