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Guaaybess Y.,Laboratory of engineering and materials LIMAT | Zerhouni L.,Laboratory of engineering and materials LIMAT | El Moussafir E.,Laboratory of engineering and materials LIMAT | Laaraj A.,Laboratory of engineering and materials LIMAT | And 2 more authors.
Journal of Materials and Environmental Science

Effect of cerium (Ce) on the microstructure and dielectric properties of lanthanum lead titanate (PLT) ceramics was investigated. Ce-doped lanthanum Lead titanate ceramics (Pb0.86-xLa0.14CexTi0.965-x/4O3) (x= 0, 0.01, 0.03, 0.06 and 0.1) with fixing La doped, were processed by sintering of pressed from nanopowder synthesized by the sol-gel route. Lanthanum lead titanate ceramics have single Pb0.86La0.14Ti0.965O3 (PLT14) phase of perovskite type, the same result is sonded then added cerium. No secondary phase was detected for all compositions. The effect of cerium addition to PLT14 on dielectric properties is analyzed. High values of dielectric constant are obtained of cerium doped PLT14. Temperature Tc, corresponding to the maximum value of dielectric constant, isn't shifted to higher temperature and the maximum value of the dielectric constant is decreased with increasing frequency, which indicates that relaxor behaviour is doesn't caused by Ce substitution. Source

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