Impedance and a.c. conductivity studies on Ba(Nd 0.2 Ti 0.6 Nb 0.2 )O 3 ceramic prepared through conventional and microwave sintering route

作者: Syed Mahboob , G. Prasad , G. S Kumar

DOI: 10.1007/BF02704134

关键词:

摘要: Electrical conduction studies on Ba(Nd0.2Ti0.6Nb0.2)O3 ceramic samples prepared through conventional and microwave sintering route are presented in this paper. D.C. a.c. conductivities of these as a function temperature from 300–900 K have been studied. Two types processes evident the frequency dependant conductivity plots, i.e. low-frequency due to short-range hopping high-frequency localized relaxation (reorientational) mechanism. Grain grain boundary contributions obtained impedance/admittance measurements via equivalent circuit modelling.

参考文章(16)
Relva C Buchanan, Ceramic materials for electronics CRC Press. ,(2004) , 10.1201/9781315273242
F.A. Kröger, H.J. Vink, Relations between the Concentrations of Imperfections in Crystalline Solids Journal of Physics C: Solid State Physics. ,vol. 3, pp. 307- 435 ,(1956) , 10.1016/S0081-1947(08)60135-6
J. Suchanicz, M. G. Gavshin, A. Yu. Kudzin, Cz. Kus, Dielectric properties of (Na0.5Bi0.5)1 − xMexTiO3 ceramics near morphotropic phase boundary Journal of Materials Science. ,vol. 36, pp. 1981- 1985 ,(2001) , 10.1023/A:1017566412219
Sossity A. Sheets, Andrey N. Soukhojak, Naoki Ohashi, Yet-Ming Chiang, Relaxor single crystals in the (Bi1/2Na1/2)1−xBaxZryTi1−yO3 system exhibiting high electrostrictive strain Journal of Applied Physics. ,vol. 90, pp. 5287- 5295 ,(2001) , 10.1063/1.1410325
Senda Saı̈d, Jean-Pierre Mercurio, Relaxor behaviour of low lead and lead free ferroelectric ceramics of the Na0.5Bi0.5TiO3–PbTiO3 and Na0.5Bi0.5TiO3–K0.5Bi0.5TiO3 systems Journal of The European Ceramic Society. ,vol. 21, pp. 1333- 1336 ,(2001) , 10.1016/S0955-2219(01)00012-7
D. C. Sinclair, A. R. West, Electrical properties of a LiTaO 3 single crystal Physical Review B. ,vol. 39, pp. 13486- 13492 ,(1989) , 10.1103/PHYSREVB.39.13486
Zhi Yu, Ruyan Guo, A. S. Bhalla, Orientation dependence of the ferroelectric and piezoelectric behavior of Ba(Ti1−xZrx)O3 single crystals Applied Physics Letters. ,vol. 77, pp. 1535- 1537 ,(2000) , 10.1063/1.1308276
Syed Mahboob, A. B. Dutta, G. Swaminathan, G. Prasad, G. S. Kumar, Dielectric Properties of BaTiO3Based Lead Free Relaxor Prepared Through Conventional and Microwave Sintering Ferroelectrics. ,vol. 326, pp. 79- 84 ,(2005) , 10.1080/00150190500318354
D. C. Sinclair, A. R. West, Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance Journal of Applied Physics. ,vol. 66, pp. 3850- 3856 ,(1989) , 10.1063/1.344049