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Glass formation in the multicomponent chalcogenide GeSe2-Sb2Se3-PbTe system

V. VASSILEV1,* , M. RADONOVA1, S. BOYCHEVA2, E. FIDANCEVSKA3

Affiliation

  1. University of Chemical Technology and Metallurgy, Department of Non-Ferrous Metals and Semiconductor Technologies – Sofia, 8 Kl. Ohridsky Blvd., 1756 Sofia, Bulgaria
  2. Technical University –Sofia, Department of Thermal and Nuclear Power Engineering, 8 Kl. Ohridsky Blvd., 1000 Sofia, Bulgaria
  3. University „St. Cyril and Methodius“, Faculty of Technology and Metallurgy, Rudjer Boskovic 16, 1000 Skopje, Macedonia

Abstract

New chalcogenide glasses (ChGs) from the GeSe2–Sb2Se3–PbTe system were synthesized. The glass-forming region was determined by the help of visual and X-ray diffraction analyses. It is situated in the GeSe2-rich part in the Gibbs’ diagram and partially lies on the GeSe2– Sb2Se3 (0–70 mol% Sb2Se3) and GeSe2–PbTe (15.0–57.5 mol% PbTe) sides. No glasses were obtained in the binary Sb2Se3–PbTe system. The ChGs were investigated with respect to their phase transformations temperatures (glass transition Tg, crystallization Tcr and melting Tm) and density (d). The compactness (C) and Hruby’s criterion (KG) were calculated from the measured values for the thermal and mechanical characteristics.

Keywords

Chalcogenide glasses, Physicochemical properties, Thermomechanical characteristics.

Citation

V. VASSILEV, M. RADONOVA, S. BOYCHEVA, E. FIDANCEVSKA, Glass formation in the multicomponent chalcogenide GeSe2-Sb2Se3-PbTe system, Optoelectronics and Advanced Materials - Rapid Communications, 3, 8, August 2009, pp.751-756 (2009).

Submitted at: July 6, 2009

Accepted at: July 31, 2009