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Na_(0.5)Bi_(0.5)TiO_3-BaTiO_3陶瓷的介电和压电性能研究 被引量:3

Dielectric and Piezoelectric Properties of Na_(0.5)Bi_(0.5)TiO_3-BaTiO_3 Ceramics
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摘要 研究了Na0.5Bi0.5TiO3和(Na0.5Bi0.5)0.94Ba0.06TiO3陶瓷的电滞回线、压电性能和热滞现象·得到(Na0.5Bi0.5)0.94 Ba0.06TiO3陶瓷的剩余极化Pr=19uC/cm2、矫顽场Ec=4.7kV/mm.发现用适量的Ba2+取代(Na0.5Bi0.5)2+尽管压电性能有所提高,但同时使得材料的温度稳定性大大降低. D - E hysteresis, piezoelectric properties and temperature hysteresis phenomena of (Na0.5Bi0.5)TiO3 and (Na0.5Bi0.5)(0.94)Ba0.06TiO3 ceramics were investigated. Remnant polarization (P-r=19muC/cm(2)) and coercive field (E-c =4.7kV/mm) of (Na0.5Bi0.5)(0.94)Ba0.06TiO3 ceramic were obtained in the experiment. Although the substitution of Ba2+ for (Na0.5Bi0.5)(2+) can improve the piezoelectric properties, it can also induce the deterioration of temperature stability.
出处 《无机材料学报》 SCIE EI CAS CSCD 北大核心 2002年第1期61-65,共5页 Journal of Inorganic Materials
基金 国家重点基础研究发展规划项目(G1998061408)
关键词 介电常数 热滞 相变 压电性能 陶瓷 钛酸铋钠 钛酸钡 介电性能 dielectric constant temperature hyseresis phase transition
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