Title of article
XPS and impedance spectroscopy of some oxygen vacancy conducting solid electrolyte ceramics
Author/Authors
A.F. Orliukas، نويسنده , , A.F. and ?alkus، نويسنده , , T. and Ke?ionis، نويسنده , , A. and Venckut?، نويسنده , , V. and Kazlauskien?، نويسنده , , V. and Mi?kinis، نويسنده , , J. and Laukaitis، نويسنده , , G. and Dudonis، نويسنده , , J.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
5
From page
36
To page
40
Abstract
The powder of 10GDC, 15SDC, and 8YSZ compounds with different surface areas (SBET) was used for the sintering of the ceramics. The sintering of the ceramic samples was conducted in air at 1773 K. The surfaces of the ceramics were investigated by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The complex impedance and electric conductivity in frequency range (10–3⋅109) Hz and temperature range from 300 to 700 K were carried out. Relaxation dispersions of the electrical parameters were found for all compounds. The dispersions are caused by the oxygen vacancy (VO••)transport in grain boundaries and bulk of the ceramic samples. The values of the bulk and total conductivities of the samples depend on the SBET of the powder used for sintering of the ceramics.
Keywords
Impedance spectroscopy , Conductivity , XPS , ceramics , Surfaces area SBET , SEM
Journal title
Solid State Ionics
Serial Year
2011
Journal title
Solid State Ionics
Record number
1710149
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