The synthesis of beta alumina from aluminium hydroxide and oxyhydroxide precursors

Two aluminium oxyhydroxides, boehmite and pseudoboehmite, and two aluminium hydroxides, bayerite and gibbsite, have been investigated as precursors for the synthesis of the solid electrolyte, beta alumina. Reaction pathways and products have been characterized by thermal analysis and powder X-ray di...

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Veröffentlicht in:Materials research bulletin 1993-02, Vol.28 (2), p.145-157
Hauptverfasser: van Zyl, A, Thackeray, MM, Duncan, GK, Kingon, AI, Heckroodt, RO
Format: Artikel
Sprache:eng
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Zusammenfassung:Two aluminium oxyhydroxides, boehmite and pseudoboehmite, and two aluminium hydroxides, bayerite and gibbsite, have been investigated as precursors for the synthesis of the solid electrolyte, beta alumina. Reaction pathways and products have been characterized by thermal analysis and powder X-ray diffraction. A solid state reaction model for the formation of β″-Al 2O 3 is proposed.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(93)90083-P