Article

Nucleation and Crystallization of a Lithium Aluminosilicate Glass

Luisa BarbieriDepartment of Chemistry, University of Modena, 41100 Modena, ItalyCristina LeonelliDepartment of Chemistry, University of Modena, 41100 Modena, ItalyTiziano ManfrediniDepartment of Chemistry, University of Modena, 41100 Modena, ItalyCristina SiligardiDepartment of Chemistry, University of Modena, 41100 Modena, ItalyAnna Bonamartini CorradiDepartment of Chemistry, University of Modena, 41100 Modena, ItalyPiercarlo MustarelliCSTE-CNR and Department of Physical Chemistry, University of Pavia, 27100 Pavia, ItalyCorrado TomasiCSTE-CNR and Department of Physical Chemistry, University of Pavia, 27100 Pavia, Italy

1997en

ABI

Abstract

An aluminosilicate glass of composition 61SiO 2 6Al 2 O 3 10MgO6ZnO·12Li 2 O·5TiO 2 (mol%) has been prepared by a melting process and investigated as far as crystallization is concerned. Glass‐ceramic is easily obtained because glass shows a high tendency to crystallize starting from 700°C. The crystalline phases evolve with temperature, showing the aluminosilicates to be the main phase up to 1050°C, followed by metasilicates and silicates, some of which have lower melting points. The titanates of Mg and Zn develop from the phase‐separated glass, soon after T g , and grow to form nucleation centers for the other crystalline phases. The evolution from phase‐separated glass to glass‐ceramic has been followed by many thermal, diffractometric, spectroscopic, and microscopic techniques.

Identifiers

DOI: 10.1111/j.1151-2916.1997.tb03235.x

Citations and references

Cited by 20 references

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