Paper Title:
The Effects of Al2O3 Source on Phase Formation, Crystallite Size and Microstructure of Na-β"-Alumina Solid Electrolyte
  Abstract

Na--alumina with MgO stabilized was produced through solid state reaction. High purity starting material, -Al2O3, -Al2O3, Na2CO3 and MgO were used. The desired amount of starting materials corresponding to the nominal formula Na(1+x)MgxAl(11-x)O17 were mixed and calcined at temperature 1200 for 10 h under atmospheric pressure. The effect of Al2O3 source on phase formation and averaged crystallite size of Na--alumina were investigated via X-ray diffraction (XRD), SEM and TGA/DTA. The XRD result show that formation of Na--alumina with high purity is obtained when -Al2O3 was used. The larger crystallite size is found for sample prepared form -Al2O3. For SEM study the Na--alumina microstructure is seen as randomly packing of several sheets. Calculated crystallite size of sample prepared from -Al2O3 show the larger value compared to that one prepared from -Al2O3.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
272-275
DOI
10.4028/www.scientific.net/AMR.93-94.272
Citation
W. Prachamon, A. Niyompan, R. Tipakontitikul, "The Effects of Al2O3 Source on Phase Formation, Crystallite Size and Microstructure of Na-β"-Alumina Solid Electrolyte", Advanced Materials Research, Vols. 93-94, pp. 272-275, 2010
Online since
January 2010
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$35.00
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