A study of the glass formation and crystallization in the mixed fluorozirconate–phosphate systems ZrF4–BaF2(SnF2)–NaPO3
| Autor: | I.G. Maslennikova, V. K. Goncharuk, Sergey A. Sarin, Valeriy Ya. Kavun, Arseniy B. Slobodyuk, Valerii I. Kharchenko |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Analytical chemistry Mineralogy 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Crystallization temperature Metal chemistry.chemical_compound law Differential thermal analysis Materials Chemistry Crystallization Small-angle X-ray scattering Scattering 021001 nanoscience & nanotechnology Condensed Matter Physics Phosphate 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry Transmission electron microscopy visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Journal of Non-Crystalline Solids. 431:118-125 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2015.05.011 |
| Popis: | Fluorozirconate–phosphate glasses in the ZrF 4 –BaF 2 (SnF 2 )–NaPO 3 and 53ZrF 4 –30BaF 2 –(17 − x )NaPO 3 – x MF 3 systems (M = Ga, In, Bi; 1 ≤ x ≤ 5) have been prepared and characterized by differential thermal analysis (DTA), 19 F nuclear magnetic resonance (NMR), 19 F and 31 P magic-angle spinning (MAS) NMR, small-angle X-ray scattering (SAXS), and transmission electron microscopy (TEM). It was shown that glasses consisted of fluorozirconate and phosphate subsystems, which coexisted independently. The additives of metal trifluorides MF 3 do not virtually affect thermal characteristics of fluorozirconate subsystem but decrease gradually the crystallization temperature (T c2 ) of phosphate subsystem According to the SAXS and TEM data, the fluorozirconate–phosphate glasses have the globular structure with the particles size of 50–560 A. Mixed fluorozirconate–phosphate glasses can be considered as precursors for obtaining new functional materials. |
| Databáze: | OpenAIRE |
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