Electrical Transport Properties of Lead−Free (Na 0.5 Bi 0.5 ) 1-x Ba x Zr 0.04 Ti 0.96 O 3 Ceramics (x = 0.06, 0.085, 0.1).
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| Title: | Electrical Transport Properties of Lead−Free (Na 0.5 Bi 0.5 ) 1-x Ba x Zr 0.04 Ti 0.96 O 3 Ceramics (x = 0.06, 0.085, 0.1). |
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| Authors: | Suchanicz, J.1 SFSUCHON@UP.KRAKOW.PL, Stopa, G.1, Pytel, K.2, Konieczny, K.1, Finder, A.3, Antonova, M.4, Sternberg, A.4 |
| Source: | Ferroelectrics. 2011, Vol. 418 Issue 1, p106-115. 10p. |
| Subjects: | Electron transport, Lead, Titanium dioxide, Ceramic materials, Solid state chemistry, High pressure (Science), Sintering, Electric conductivity |
| Abstract: | Lead-free ceramics (Na0.5Bi0.5)1-xBaxZr0.04Ti0.96O3 were prepared by solid phase hot pressing sintering process. Density values of obtained samples are higher than 95% of the theoretical ones. Samples with x = 0.06, 0.085 and 0.1 were investigated in the present work. For these samples both ac and dc electric conductivity were studied. A low frequency (100 Hz-100 kHz) ac conductivity obeys the power law, characteristic for disordered materials. The dc conductivity has a thermally activated character. A barrier hopping model is found to explain the mechanism of charge transport in these materials. The (Na0.5Bi0.5)1-xBaxZr0.04Ti0.96O3 system is expected to be a new and promising candidate for the lead−free electronic ceramics. [ABSTRACT FROM PUBLISHER] |
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| Database: | Engineering Source |
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