Szczegóły publikacji
Opis bibliograficzny
Structure and microstructure of the glasses from $NaCaPO_{4}-SiO_{2}$ and $NaCaPO_{4}-SiO_{2}-AlPO_{4}$ systems / A. WAJDA, K. BUŁAT, M. SITARZ // Journal of Molecular Structure ; ISSN 0022-2860. — 2016 — vol. 1126 spec. iss., s. 47–62. — Bibliogr. s. 61–62, Abstr. — Publikacja dostępna online od: 2015-12-09. — K. Bułat – dod. afiliacja: Jagiellonian University. — From molecules to molecular materials, biological molecular systems and nanostructures : a collection of contributions presented at the XIIIth international conference on Molecular spectroscopy / eds. Henryk Ratajczak, Marek Drozd, Rui Fausto
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 100996 |
|---|---|
| Data dodania do BaDAP | 2016-09-30 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.molstruc.2015.12.003 |
| Rok publikacji | 2016 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Molecular Structure |
Abstract
Structure and microstructure of silico-phosphate glasses belong to NaXPO4-SiO2 and NaXPO4-SiO2-AlPO4 (where X = Ca or/and Mg) systems were investigated. Scanning electron microscopic studies combined with EDX were made it possible to show the occurrence of phase separation in the obtained materials. It was found that alumina has a homogenising effect on the microstructure of silico-phosphate glasses. Addition of a small amount of alumina (5 mol. % of AlPO4) causes the chemical compositions inversion of the matrix and the inclusions. Structural investigations of the obtained glasses as well as of the corresponding crystalline materials showed that the studied glasses exhibit domain composition. Structure of the domains is close to that of the corresponding crystalline phases. Spectroscopic investigations involving spectra decomposition into component bands were made it possible to establish the homogenising effect of aluminium on the structure of silicate-phosphate glasses. Presence of alumina leads to elimination of Pdouble bond; length as m-dashO bonds as well as replacement of Si–O–P by the Al–O–P ones.
