CH ARACTERIZATION OF LA YERED Na_(2-x-y)LixKyTi_(3)O_(7) CERAMICS BY DIELECTRIC-SPECTROSCOPIC INV ESTIG ATIONS

查看全文 作　　者：[1]SHRIPAL;RAKESH [1]SINGH;[1]GEETIKA;RAVI [2]K.SHUKLA;[2]K.K.RAINA 机构地区：[1]Department of Physics,P.P.N.College Kanpur 208001,India;[2]School of Physics&Materials Science Thapar University,Patiala 147004,India 出　　处：《Journal of Advanced Dielectrics》索引2011年第1卷第4期,共9页 摘　　要：In this paper,we present detailed investigations on the dielectric properties of Lithium(x=0.10)and Potassium(y=0.01,0.02,0.04,0.05)mixed Sodium trititanate,Na_(2-x-y)LixKyTi_(3)O_(7) poly-crystalline ma terials synthesized by solid-state reaction.The characteristics of the pelletized samples have been studied in the temperature range from 350 to 725 K and on the frequency in the range from 10kHz to 1 MHz.The studies reveal that the chain structured Na_(2-x-y)LixKyTi_(3)O_(7) layered compound posses electronic,ionic,dipolar,and space charge polarization mechanisms over the respective temperature regions in the entire temperature range of study. 关 键 词：Layered titanates dielectric spectroscopy dielectric loss PERMITTIVITY POLARIZATION