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izvor podataka: crosbi

Structural Properties and Crystallization of Sodium Tellurite Glasses (CROSBI ID 147390)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Šantić, Ana ; Moguš-Milanković, Andrea ; Furić, Krešimir ; Rajić-Linarić, Maša ; Ray, Chandra S. ; Day, Delbert E. Structural Properties and Crystallization of Sodium Tellurite Glasses // Croatica chemica acta, 81 (2008), 4; 559-567

Podaci o odgovornosti

Šantić, Ana ; Moguš-Milanković, Andrea ; Furić, Krešimir ; Rajić-Linarić, Maša ; Ray, Chandra S. ; Day, Delbert E.

engleski

Structural Properties and Crystallization of Sodium Tellurite Glasses

The structural properties and crystallization behaviour of xNa2O-(100-x)TeO2 (0<x<33.3 mol%) glasses have been investigated by Raman spectroscopy, X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The Raman spectra of glasses show systematic changes in structural units, from TeO4 trigonal bypiramids (tbps) to TeO3 trigonal pyramids (tps) with increasing Na2O content in glass. These structural changes are result of Te-O-Te disruption and the formation of non-bridging oxygens (NBOs) in glass network. When heated at 623 K for 10 h glasses crystallized to different phases: alfa-TeO2, Na2Te4O9 and a new crystalline phase which is believed to be a polymorph of Na2Te2O5.

tellurite glasses ; structure ; DSC ; Raman spectroscopy

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Podaci o izdanju

81 (4)

2008.

559-567

objavljeno

0011-1643

1334-417X

Povezanost rada

Fizika, Kemija

Poveznice
Indeksiranost