Authors:
K. J. D. MacKenzie Materials and Energy Research Centre Aryamehr University of Technology P. O. Box 41-2927 Tehran Iran

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F. Golestani-Fard Materials and Energy Research Centre Aryamehr University of Technology P. O. Box 41-2927 Tehran Iran

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Silver antimony oxide (Ag2Sb2O6) having a defect pyrochlore structure has been synthesized by solid-state reaction between silver oxide and either Sb2O3 and Sb2O5. The reaction sequence has been shown by thermogravimetry, interdiffusion measurements on oxide pellets and electrical conductance measurements to involve the reduction of Ag2O, followed by diffusion of silver and oxygen into the antimony oxide component. When the starting material is Sb2O3, initial diffusion of oxygen occurs, forming Sb2O4 into which silver and further oxygen subsequently diffuse. Comparison of the activation energies for diffusion and electrical conductance in the various oxide phases suggests that the rate of Ag2Sb2O6 formation is controlled by the diffusion of oxygen rather than that of silver.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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