A Reinvestigation of Low-Carnegieite by XRD, NMR, and TEM

J.G.Thompson J.G.ThompsonJohn G.J.G.Thompson J.ThompsonJohn G.https://api.elsevier.com/content/author/author_id/7405817797 (1993) A Reinvestigation of Low-Carnegieite by XRD, NMR, and TEM. Journal of Solid State Chemistry, 104 1: 59-73. doi:10.1006/jssc.1993.1141


Author J.G.Thompson J.G.ThompsonJohn G.J.G.Thompson J.ThompsonJohn G.https://api.elsevier.com/content/author/author_id/7405817797
Title A Reinvestigation of Low-Carnegieite by XRD, NMR, and TEM
Journal name Journal of Solid State Chemistry   Check publisher's open access policy
ISSN 0022-4596
Publication date 1993-05-01
Year available 1993
Sub-type Article (original research)
DOI 10.1006/jssc.1993.1141
Open Access Status Not yet assessed
Volume 104
Issue 1
Start page 59
End page 73
Total pages 15
Place of publication SAN DIEGO
Publisher ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS
Language eng
Subject 2504 Electronic, Optical and Magnetic Materials
2503 Ceramics and Composites
3104 Condensed Matter Physics
1606 Physical and Theoretical Chemistry
1604 Inorganic Chemistry
2505 Materials Chemistry
Abstract The crystal structure of low-carnegieite, NaAlSiO, has been reinvestigated by a combination of X-ray powder diffraction, transmission electron microscopy, solid-state Si and Al MAS NMR spectroscopy, and electron microprobe analysis. With sufficient homogenization of component oxides and annealing at 1673 K it was possible to obtain a single crystalline phase which could be indexed to an orthorhombic unit cell: Pb 2a, a = 10.261(1), b = 14.030(2), c = 5.1566(6) Å. Electron microprobe analysis confirmed the stoichiometry to be NaAlSiO. Si and Al NMR spectroscopy verified the perfect Si:Al ordering. It is now clear from the present work that previous attempts to synthesize low-carnegieite all suffered from incomplete reaction and the presence of other phases. One of these phases has been identified as having a large hexagonal unit cell with a = 13.97(2), c = 15.03(2) Å.
Keyword Spectroscopy
Glasses
Si-29
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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