The regularities of the formation of the structure of composite ceramic materials during reaction firing of raw mixtures, including mixtures of powders of traditional aluminosilicate raw materials (kaolinite) and nano-sized synthetic precursor materials (potassium polytitanate), have been investigated. It is shown that in the course of sintering, chemical interaction of the components occurs, accompanied by amorphization of the raw mixtures and subsequent crystallization of the resulting amorphous phase of complex chemical composition. The phase composition of the obtained composites includes: rutile, thialite, mullite, leusite, calsilite and glass phase in various ratios, ensuring the achievement of high performance characteristics. Tab. 2, ill. 4, bibliography: 7 titles.
Pat. 3629116 USA, C04B14 / 36. Compositions for making structured insulating materials / WJ Gartner, CT Clark; appl. 19711221; publ. 12/21/1971.
Pat. 6316467 Japan, B28B1 / 52. Production of incombustible molding / T. Arai; appl. 19920243987; publ. 11/15/1994.
Takahashi M., ukuda M., ukuda. , Yoko T. Preparation, Structure and Properties of Thermally and Mechanically Improved Aluminum Titanate Ceramics Doped with Alkali Feldspar // J. Am. Ceram. Soc. 2002. Vol. 85. No. 12. P.
3025-3030. Morishima. , Kato Z., Uematsu K. et al. Synthesis of aluminum titanate-mullite composite having high thermal shock resistance // J. Mat. Sci. Lett. 1987. Vol. 6.No. 4. P. 389.
Lee. L., Jeong JY, Lee. M. Preparation of Al 2 TiO 5 from alkoxides and the effects of additives on its properties // J. Mat. Sci. 1997. Vol. 32. No. 21. P. 5687 - 5695.
Rehfeld G., Staudt T., Zografou C. Aluminum titanate powders - characteristics and possible applications // Ceram. Transactions. 1988. Vol. 1 (Ceram. Powder Sci. No. 2, Pt. B). P. 1100 - 1107.
Gorokhovsky AV, Escalante-Garc aJ.I., S nchez-Mon ar sT., Precursors by treatment of TiO 2 with molten mixtures of KNO 3 sub > and KOH // J. Eur. Ceram. Soc. 2004. Vol. 24. No. 13.P. 3541 - 3546.
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