Solid-state nuclear magnetic resonance study of the structure of lanthanumphosphate crystals and glasses

Authors
Rashid, NE Phillips, BL Risbud, SH
Citation
Ne. Rashid et al., Solid-state nuclear magnetic resonance study of the structure of lanthanumphosphate crystals and glasses, J MATER RES, 15(11), 2000, pp. 2463-2467
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
08842914 → ACNP
Volume
15
Issue
11
Year of publication
2000
Pages
2463 - 2467
Database
ISI
SICI code
0884-2914(200011)15:11<2463:SNMRSO>2.0.ZU;2-I
Abstract
Lanthanum phosphate glasses were synthesized by melt quenching and characte rized by x-ray diffraction, electron microprobe analysis, and solid-state n uclear magnetic resonance spectroscopy. A range of compositions near the me taphosphate composition (75 mol% P2O5) was examined. Comparison of P-31 che mical shifts and shielding anisotropies of glasses with those of the crysta lline phases of La(PO3)(3) (metaphosphate) and LaP5O14 (pentaphosphate) wer e consistent with the presence of primarily chainlike Q(2) phosphate groups .