In:
Journal of Advanced Ceramics, Tsinghua University Press, Vol. 5, No. 3 ( 2016-09), p. 219-224
Abstract:
Lead-free (1− x )Sr 0.1 Bi 0.45 Na 0.45 TiO 3 − x Bi 0.5 Li 0.5 TiO 3 ( x = 0−0.4) ceramics were successfully prepared by a solid-state reaction technique. The effects of amount of Bi 0.5 Li 0.5 TiO 3 on structure and electrical properties were examined. The X-ray diffraction (XRD) analysis revealed that all the investigated specimens have a perovskite structure. An obvious change in microstructure with the increase of Bi 0.5 Li 0.5 TiO 3 concentration was observed. This study demonstrated that relaxor could be stabilized in Sr 0.1 Bi 0.45 Na 0.45 TiO 3 based ceramics by lowering the tolerance factor and electronegativity difference. Besides, a dielectric anomaly related to thermal evolution of crystallographic symmetry was emerged at the depolarization temperature. Upon incorporation of 26 mol% Bi 0.5 Li 0.5 TiO 3 , the specimens were able to withstand an electric field intensity of 106.9 kV/cm with an energy density of 0.88 J/cm 3 and an energy efficiency of 65%.
Type of Medium:
Online Resource
ISSN:
2226-4108
,
2227-8508
DOI:
10.1007/s40145-016-0193-1
Language:
English
Publisher:
Tsinghua University Press
Publication Date:
2016
detail.hit.zdb_id:
2682430-9
Permalink