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Crystallization of selenite glasses in reduction atmosphere

A. BACHVAROVA-NEDELCHEVA1,* , R. IORDANOVA1, Y. DIMITRIEV2, ST. YORDANOV3

Affiliation

  1. Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
  2. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Blvd., 1756 Sofia, Bulgaria
  3. Central Laboratory of Solar Energy and New Energy Source, 1784 Sofia, 72, Tsarigradsko Shose Blvd

Abstract

Multicomponent selenite glass compositions for preparation of nanocomposite materials, containing chalcogenide compound were selected. The glasses are thermal stable below 3000C. They were subjected to heat treatment in different reducing conditions at 2000C: in a N2+H2 (20 %) gas flow and in a vacuum oven. There is a proof for the formation of small chalcogenide nanocrystals in an amorphous oxide matrix containing SeO2..

Keywords

Crystallization, Selenite glass, Structure.

Submitted at: July 3, 2007
Accepted at: Oct. 15, 2007

Citation

A. BACHVAROVA-NEDELCHEVA, R. IORDANOVA, Y. DIMITRIEV, ST. YORDANOV, Crystallization of selenite glasses in reduction atmosphere, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 10, pp. 3187-3190 (2007)