Nitrogen Sensitivity Effect on Porous BaTiO3 Ceramics

The sensitivity based on the resistive effect of porous BaTiO3 ceramic samples were studied at 500DGC using a characterization setup of potentiometeric type. We have shown that these porous materials, fabricated by adding anthracene using solid and liquid techniques, exhibit semiconductivity of p ty...

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Bibliographic Details
Published in:Key engineering materials 2004-01, Vol.264-268, p.2215-2218
Main Authors: Rayane, T., Boucheffa, Y., Mezroua, A.
Format: Article
Language:English
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Summary:The sensitivity based on the resistive effect of porous BaTiO3 ceramic samples were studied at 500DGC using a characterization setup of potentiometeric type. We have shown that these porous materials, fabricated by adding anthracene using solid and liquid techniques, exhibit semiconductivity of p type expressed in terms of an increase in resistivity under N2 and a decrease under O2. The pore sizes play an important role in the speed response of N2. Depending on the atmosphere (N2 or O2), the behavior of these materials is related to the established oxygen equilibrium between this atmosphere and BaTiO3 perovskite surface. In sensor applications, oxide based ceramics are considered as choice materials to detect various pollution gases.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.264-268.2215