CHARACTERIZATION OF THE THERMAL TRANSFORMATION OF HYDROUS ALUMINAS BYXPS AND NMR

Authors
HUGHES AE RAJENDRAN S SMITH ME
Citation
Ae. Hughes et al., CHARACTERIZATION OF THE THERMAL TRANSFORMATION OF HYDROUS ALUMINAS BYXPS AND NMR, Materials letters, 17(5), 1993, pp. 303-308
Citations number
14
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
17
Issue
5
Year of publication
1993
Pages
303 - 308
Database
ISI
SICI code
0167-577X(1993)17:5<303:COTTTO>2.0.ZU;2-Z
Abstract
Two series of alpha-Al2O3 seeded hydrous aluminas, unwashed (containin g (NH4)2NO3) and washed. were examined by XPS and NMR after heat treat ment. The unwashed material, which transforms to alpha-Al2O3 at 950-de grees-C, contained less AlO4 at all treatment temperatures up to the a lpha-Al2O3 transition than the washed material; an explanation is give n.