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https://hdl.handle.net/1822/17595| Title: | 31P nuclear magnetic resonance and X-ray diffraction study of Na-Sr-phosphate glass-ceramics |
| Author(s): | Pires, R. A. Abrahams, I. Nunes, Teresa G. Hawkes, G. E. |
| Keywords: | Glass-ceramics Phosphates NMR X-ray powder diffraction |
| Issue date: | 2004 |
| Journal: | Key Engineering Materials |
| Abstract(s): | A set of Na-Sr-phosphate glass and glass-ceramic samples, with general formula xSrO:(0.55-x)Na2O:0.45P2O5, were prepared and analysed by solid state 31P nuclear magnetic resonance spectroscopy and X-ray powder diffraction. The results show the presence of Q1 and Q2 phosphate species in all samples. At low concentrations of Sr2+ (x £ 0.20) the strontium is preferentially incorporated in Sr2+-Q1 crystalline phases, and only at higher Sr2+ concentrations are crystalline phases present which Sr2+ is associated with Q2 phosphate units. |
| Type: | Conference paper |
| URI: | https://hdl.handle.net/1822/17595 |
| ISSN: | 1662-9795 |
| Peer-Reviewed: | yes |
| Access: | Open access |
| Appears in Collections: |
