A study of ionic defects in modified lead titanate ceramics |
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| Authors: | J De Frutos M L Calzada E Menéndez |
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| Affiliation: | (1) ETSIT Avenida Complutense s/n, 28040 Madrid, Spain;(2) Instituto Ciencia de Materiales de Madrid (CSIC), C/Serrano 144, 28006 Madrid, Spain;(3) ICCET/CSIC C/Serrano Galvache s/n, 28033 Madrid, Spain |
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| Abstract: | Pb1–x
Ca
x
(Co0.5W0.5)0·05Ti0.95]O3 ceramics with x = 0.24, 0.30 and 0.35, are prepared by a solid state reaction of oxides. Deviations from nominal chemical compositions and formation of segregated phases different from modified lead titanate perovskites, are studied. Pyro- and non-pyroelectric currents excited in the material by a thermal wave are investigated and related to mobility of electrical charges in the materials. |
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