TY - JOUR
T1 - Influence of Zr/Ti ratio on the dielectric properties of BaZrxTi1−xO3 ceramics for high-voltage capacitor applications
AU - Zhang, Yan
AU - Li, Yaoyao
AU - Zhu, Haikui
AU - Fu, Zhenxiao
AU - Zhang, Qitu
N1 - Publisher Copyright:
© 2016, Springer Science+Business Media New York.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - Ba(ZrxTi1−x)O3 ceramics are prepared via the conventional solid state reaction method. The Zr4+ ions have diffused into the BaTiO3 lattices to form a homogenous solid solution. The effects of Zr/Ti ratio on dielectric properties and breakdown strength of Ba(ZrxTi1−x)O3 ceramics are systematically discussed. The high porosities of Ba(ZrxTi1−x)O3 ceramics deteriorate seriously the dielectric constant, dielectric loss and the breakdown strength. When the concentration of Zr4+ ions increase from x = 0.05 to x = 0.20, the Curie temperature Tc decreases slightly from 120 to 60 °C, the grain sizes decrease slightly as well attributing to the difference ionic radius of Ti4+ ions and Zr4+ ions. The concentration of Zr4+ ions has a significant effect on the breakdown strength of Ba(ZrxTi1−x)O3 ceramics. Excellent breakdown strength and dielectric properties are achieved in the BaZr0.15Ti0.85O3 ceramics sintered at 1260 °C for 2 h: Eb = 12.028 kv/mm, εr = 3334.6, tanδ = 0.005.
AB - Ba(ZrxTi1−x)O3 ceramics are prepared via the conventional solid state reaction method. The Zr4+ ions have diffused into the BaTiO3 lattices to form a homogenous solid solution. The effects of Zr/Ti ratio on dielectric properties and breakdown strength of Ba(ZrxTi1−x)O3 ceramics are systematically discussed. The high porosities of Ba(ZrxTi1−x)O3 ceramics deteriorate seriously the dielectric constant, dielectric loss and the breakdown strength. When the concentration of Zr4+ ions increase from x = 0.05 to x = 0.20, the Curie temperature Tc decreases slightly from 120 to 60 °C, the grain sizes decrease slightly as well attributing to the difference ionic radius of Ti4+ ions and Zr4+ ions. The concentration of Zr4+ ions has a significant effect on the breakdown strength of Ba(ZrxTi1−x)O3 ceramics. Excellent breakdown strength and dielectric properties are achieved in the BaZr0.15Ti0.85O3 ceramics sintered at 1260 °C for 2 h: Eb = 12.028 kv/mm, εr = 3334.6, tanδ = 0.005.
UR - http://www.scopus.com/inward/record.url?scp=84969848981&partnerID=8YFLogxK
U2 - 10.1007/s10854-016-5010-7
DO - 10.1007/s10854-016-5010-7
M3 - 文章
AN - SCOPUS:84969848981
SN - 0957-4522
VL - 27
SP - 9572
EP - 9576
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 9
ER -