Pregled bibliografske jedinice broj: 293990
Influence of iron ions on the structural properties of some inorganic glasses
Influence of iron ions on the structural properties of some inorganic glasses // Journal of radioanalytical and nuclear chemistry, 115 (1987), 141-157 doi:10.1007/BF02037218 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 293990 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of iron ions on the structural properties of some inorganic glasses
Autori
Musić, Svetozar ; Gotić, Marijan ; Popović, Stanko ; Gržeta, Biserka
Izvornik
Journal of radioanalytical and nuclear chemistry (0236-5731) 115
(1987);
141-157
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Zn-borosilicate glass ; Fe_2O_3 ; zinc ferrite ; X-ray diffraction ; Mossbauer spectroscopy
Sažetak
The effects of iron on the structural properties of Zn-borosilicate glass and Pb-metal-phosphate glass were studied by X-ray diffraction, ^57Fe Mossbauer spectroscopy and IR spectroscopy. Zn-borosilicate glass was prepared with varying amounts of Fe_2O_3 (up to 30 %wt). It was found that the chemical form of added iron (alpha-FeOOH, alpha-Fe_2O_3 or Fe_3O_4) effects the Fe3^3+/Fe^2+ ratio, as well as the distribution of iron ions at diffent coordination sites. At high concentration of iron the crystallization of zinc ferrite in the glass matrix takes place. X-ray diffraction and ^57Fe Mossbauer spectroscopy showed that amount of zinc ferrite in Zn-borosilicate glass decreases with the following order of addition: alpha-FeOOH, alpha-Fe_2O_3 or Fe_3O_4. In Pb-metal-phosphate glass doped with high concentrations of alpha-Fe_2O_3, the crystallization of Fe_3(PO_4)_2 is pronounced. The assignments of IR band positions and corresponding interpretation are given. The importance of this study for technology of vitrification of high-level radioactive wastes is emphasized.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Ustanove:
Institut "Ruđer Bošković", Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Scopus