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Characterization of metallurgical-grade aluminas and their precursors by (27)AI NMR and XRD1
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Perander, Linus M., Zujovic, Zoran D., Groutso, Tania, Hyland, Margaret M., Smith, Mark E., O'Dell, Luke A. and Metson, James B. (2007) Characterization of metallurgical-grade aluminas and their precursors by (27)AI NMR and XRD1. Canadian Journal of Chemistry, Vol.85 (No.10). pp. 889-897. doi:10.1139/V07-106 ISSN 0008-4042.
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Official URL: http://dx.doi.org/10.1139/V07-106
Abstract
The structure of metallurgical- or smelter-grade aluminas (MGAs) is complex and poorly understood. Ultrahigh-field solid-state Al-27 NMR results on industrial as well as on laboratory-prepared aluminas are discussed in relation to XRD results. It is demonstrated that high-field NMR can effectively be used to quantify the proportion of the thermodynamically stable alpha-alumina phase in these materials. The results demonstrate that Al-27 NMR is a vital adjunct to XRD methods to quantify the transition alumina phases that invariably dominate the MGAs. The nature of the disorder in these materials, determined by Al-27 NMR, is also compared with literature data, such as XANES and EXAFS studies, on typical laboratory-prepared materials. The Utility of Al-27 NMR studies to provide new insight into the structural complexity of metallurgical aluminas is shown.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Canadian Journal of Chemistry | ||||
Publisher: | N R C Research Press | ||||
ISSN: | 0008-4042 | ||||
Official Date: | October 2007 | ||||
Dates: |
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Volume: | Vol.85 | ||||
Number: | No.10 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 889-897 | ||||
DOI: | 10.1139/V07-106 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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