Szczegóły publikacji
Opis bibliograficzny
Influence of $MgO(CaO)$ on the structure of silicate-phosphate glasses : $Ta$ and NMR study / Irena WACŁAWSKA, M. SZUMERA // Journal of Thermal Analysis and Calorimetry ; ISSN 1388-6150. — Tytuł poprz.: Journal of Thermal Analysis ; ISSN: 0368-4466. — 2006 — vol. 84 no. 1, s. 185–190. — Bibliogr. s. 189–190. — Publikacja dostępna online od: 2006-04-03. — 7th Mediterranean Conference on Calorimetry and Thermal Analysis : Thessaloniki, Greece, July 02-06, 2005
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 31080 |
|---|---|
| Data dodania do BaDAP | 2007-01-23 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10973-005-7183-9 |
| Rok publikacji | 2006 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Thermal Analysis and Calorimetry |
Abstract
Thermal and structural proper-ties of model silicate-phosphate glasses containing the different amounts of the glass network modifiers, i.e. Mg2+ and Ca2+ were studied. To explain the changes of the parameters characterizing the glass transition effect (T-g, Delta c(p)) and the crystallization process (T-c, Delta H) depending on the cations modifiers additions, analysis of the bonds and chemical interactions of atoms in the structure of glasses was used. P-31 MAS-NMR spectra of SiO2-P2O5-MgO(CaO)-K2O glasses show that the phosphate complexes are mono- and diphosphate. It has been found that increasing amounts of Mg2+ or Ca2+ cations in the structure of glasses causes the reduction of the degree of polymerization of the phosphate framework (Q(1)–>Q(0)). The influence of increasing of modifiers in the structure of silicate-phosphate glasses on the number of non-bridging oxygens per SiO4 tetrahedron and density of glasses was presented.
