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1 Optica Applicata

1 2005

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Quartz crystallization in soda-lime-silica glass

100%

Aboud T. K. , Stoch L. , Środa M.

Optica Applicata

2005

tom Vol. 35, nr 4

829-836

The tribochemical treatment of glass and grains surface area as a crystallization activating factor and its influence on the crystal phase formation is a subject of the study. Sheet glass SiO2-CaO-Na2O as a material of extremely small crystallization ability has been used in the investigations. Tribochemical activating glass powder, pressed and heated at 750°C makes it possible to obtain glass-ceramic material containing quartz, devitrite and wollastonite crystals. During a prolonged heating time, up to 500 hours, devitrite and wollastonite content is diminishing and quartz becomes a main component of the material. Structural mechanism of tribochemical activated glass crystallization in its viscoelastic state as compared with liquid glass crystallization is considered.