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Erschienen in:
01.09.2011
Use of a mechanically dispersed mixture SiO2 + Se as a colorant for obtaining tinted GLASS
Erschienen in: Glass and Ceramics | Ausgabe 5-6/2011
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Abstract
A selenium-based colorant obtained by transferring it into micro- and nanostates by mechanical dispersion using the main component of the glass—quartz sand—as the stabilizing matrix is studied. It is determined that with mechanical dispersion of SiO2+ Se mixtures not only does comminution occur but a transition of selenium into other polymorphic modifications could also occur, while the observation of an increase of the color intensity of the glasses synthesized on their basis is most likely due to the stabilization of selenium particles in low-dimension voids of the quartz glass. It has been found that a black heterogeneous mixture SiO2 + Se is characterized by high volatility and simultaneously the highest tinting power.