Effect of Temperature and Dwell Time on Phase Formation and Microstructure of β"-Alumina Solid Electrolyte

Amporn Kamonlert; Anuson Niyompan; R. Tipakontitikul

doi:10.4028/www.scientific.net/AMR.93-94.157

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 93-94Effect of Temperature and Dwell Time on Phase...

Effect of Temperature and Dwell Time on Phase Formation and Microstructure of β"-Alumina Solid Electrolyte

Abstract:

Powder of β-alumina solid electrolyte with general formula Na0.80Li0.20Al5O8 was prepared by solid state reaction according to the ternary systems Li2O-Na2O-Al2O3. All the calcined powders were heated at different temperatures for 1 h. The XRD results indicate that the β-alumina phase started to form at 1100 °C and these consistent with TG/DTA measurements. At constant calcined temperature of 1100 °C, When the dwell times was varied in range 5 h to 15 h, it was found that powder consists of β-alumina as a majority phase with a tiny amount of β-alumina and the β-alumina phase purity is about 82 wt% for dwell time of 10 h. The microstructures of β-alumina particles were seen as a layered structural arrangement with hexagonal shape and strong agglomeration between these particles are clearly seen.

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Periodical:

Advanced Materials Research (Volumes 93-94)

Pages:

157-160

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.93-94.157

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Online since:

January 2010

Authors:

Amporn Kamonlert, Anuson Niyompan, R. Tipakontitikul

Keywords:

Calcined, Phase Formation, β"-Alumina Solid Electrolyte

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