|
|||||
|
|
Raman spectroscopic study of scandium in sodium silicate glasses |
|
| Authors: | Carolynn Nelson David R Tallant John A Shelnutt |
| Institution: | Laboratoire de Metallurgie associé au CNRS (L.A. 159), ENSMIM, Parc de Saurupt, 54042 Nancy Cedex, France;Laboratoire de Physique du Solide associé au CNRS (L.A. 155), ENSMIM, Parc de Saurupt, 54042 Nancy Cedex, France |
| Abstract: | Glasses in the Na2OSiO2Sc2O3 system have been studied by Raman and difference Raman spectroscopy. Addition of Sc2O3 to sodium silicate glasses results in new vibrational bands at 1025 cm?1 and 360 cm?1. The high frequency band is interpreted to be due to Sc+3 quasi-complexes formed by Sc+3 ions coordinated by SiO4?4 tetrahedra having non-bridging oxygens. The discrete character of the scandium-produced bands implies incipient separation of Sc+3-enriched silicate structures from purely silicate structures. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |