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Electric Properties of Sr_(1-x)Bi_(2+x)Ta_(2-y)Nb_yO_9 Ceramics

机译:SR_(1-x)Bi_(2 + x)Ta_(2-y)Nb_yo_9陶瓷的电性能

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The dielectric, ferroelectric and piezoelectric properties of strontium bismuth tantalate niobate, Sr_(1-x)Bi_(2+x)Ta_(2-y)Nb_yO_9 [SBTN10x(y)] ceramics were investigated. The samples were fabricated by a conventional ceramic fabrication technique. Curie temperature, T_c, increased with an increase in Nb concentration y, and T_c of SBTN2(y) showed two regions with different slopes that divided near y=1.0. The coercive field, E_c, of SBTN2(y) increased with the increase in y and the highest E_c of 90 kV/cm was obtained. SBTN2(0.6) and SBTN2(1.0) showed the highest coupling factor k_(33) of 0.17 in the SBTN2(x) system.
机译:研究了苯铋铌酸盐,Sr_(1-x)Bi_(2 + x)Ta__(2-y)Nb_yo_9 [SBTN10x(Y)]陶瓷的施用电介质,铁电和压电性能。通过传统的陶瓷制造技术制造样品。居里温度T_C随着NB浓度Y的增加而增加,并且SBTN2(Y)的T_C显示了两个区域,其不同的斜率在y = 1.0附近划分。通过y增加,SBTN2(Y)的矫顽磁场E_C,获得的最高E_C为90kV / cm。 SBTN2(0.6)和SBTN2(1.0)显示SBTN2(X)系统中的0.17的最高耦合因子K_(33)。

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