Electrical Properties of a CeO2-Bi2O3 Mix System Elaborated at 600°C
Joint Authors
Gavarri, Jean Raymond
Bakiz, Bahcine
Bourja, Lamia
Favotto, Claude
Benlhachemi, Abdeljalil
Villain, Sylvie
Ezahri, Mohamed
Source
Advances in Materials Science and Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The electrical conduction of a series of polycristalline [(1−x)CeO2⋅x/2Bi2O3] samples has been analyzed using electrical impedance spectroscopy, in the temperature range 25 to 750∘C.
Samples have been prepared via a coprecipitation route followed by a pyrolysis process at 600∘C.
For compositions x≤0.20, Ce1−xBixO2−x/2 solid solutions, with fluorite cubic structure, are obtained.
In the composition range 0.30≤x≤1, the system is biphasic with coexistence of cubic and tetragonal structures.
To interpret the Nyquist representations of electrical analyses, various impedance models including constant phase elements and Warburg impedances have been used.
In the biphasic range (0.30≤x≤0.7), the conductivity variation might be related to the increasing fraction of two tetragonal β′ and β-Bi2O3 phases.
The stabilization of the tetragonal phase coexisting with substituted ceria close to composition x=0.7 is associated with a high conduction of the mix system CeO2-Bi2O3.
American Psychological Association (APA)
Bourja, Lamia& Bakiz, Bahcine& Benlhachemi, Abdeljalil& Ezahri, Mohamed& Villain, Sylvie& Favotto, Claude…[et al.]. 2012. Electrical Properties of a CeO2-Bi2O3 Mix System Elaborated at 600°C. Advances in Materials Science and Engineering،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-472702
Modern Language Association (MLA)
Bourja, Lamia…[et al.]. Electrical Properties of a CeO2-Bi2O3 Mix System Elaborated at 600°C. Advances in Materials Science and Engineering No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-472702
American Medical Association (AMA)
Bourja, Lamia& Bakiz, Bahcine& Benlhachemi, Abdeljalil& Ezahri, Mohamed& Villain, Sylvie& Favotto, Claude…[et al.]. Electrical Properties of a CeO2-Bi2O3 Mix System Elaborated at 600°C. Advances in Materials Science and Engineering. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-472702
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472702