Synthesis of mullite from slime of normal electrocorundum and kaolin

Phase transformations in slime of normal electrocorundum upon heating in air and its high-temperature interaction with kaolin in steady and interspersing layers are studied. Preliminary oxidation of lower titanium oxides contained in slime is a necessary condition for obtaining mullite. The properti...

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Veröffentlicht in:	Refractories and industrial ceramics 2000-09, Vol.41 (9-10), p.345-348
Hauptverfasser:	PRUTTSKOV, D. V, TROYAN, V. D, MALYSHEV, I. P, SHAPOVALOVA, T. F, SHARAPOVA, V. V
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum silicates Applied sciences Building materials. Ceramics. Glasses Ceramics Chemical industry and chemicals Exact sciences and technology Kaolin Melts Mullite Refractory products Silica-alumina refractories Slime Solid solutions Synthesis
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Zusammenfassung:	Phase transformations in slime of normal electrocorundum upon heating in air and its high-temperature interaction with kaolin in steady and interspersing layers are studied. Preliminary oxidation of lower titanium oxides contained in slime is a necessary condition for obtaining mullite. The properties of mullite and retained glass are studied in detail. Mullite has a nonstoichiometric composition and forms solid solutions with titanium and iron oxides. It is assumed that their intensifying action in synthesis is a result of the lower viscosity of the alumosilicate melt.[PUBLICATION ABSTRACT]
ISSN:	1083-4877 1573-9139
DOI:	10.1023/a:1011324905009