Phase composition of lithium aluminosilicate glass-ceramics

Author: Afonin A.   Alekseeva L.   Borodai S.   Lyashenko L.   Shcherbakova L.   Suzdal’tsev E.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 0020-1685

Source: Inorganic Materials, Vol.42, Iss.5, 2006-05, pp. : 562-566

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Abstract

The phase composition of glass-ceramics produced by heat-treating lithium aluminosilicate glass at temperatures from 600 to 1300°C has been determined by x-ray diffraction and electron probe x-ray microanalysis. The materials heat-treated in the range 1000–1230°C have been shown to contain an Si0.65Al0.19Ti0.09Sb0.013Na0.032K0.013Ce0.008As0.013O1.864 glass phase and crystalline solid solutions: tetragonal spodumene-like Li1 − 4x − 2y TixZnyAlSi3O8 (x, y ≤ 0.05), sillimanite-based Al1.92Ti0.08SiO5.04, and rutile-based Ti0.99Sb0.01O2.005. The structures and lattice parameters of the crystalline phases have been determined.

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