Phase development in La2O3 doped Al2O3 : TiO2 ceramic membranes
UNSPECIFIED. (1999) Phase development in La2O3 doped Al2O3 : TiO2 ceramic membranes. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 19 (10). pp. 1847-1857. ISSN 0955-2219Full text not available from this repository.
The phase development of sol derived diphasic Al2O3:TiO2 membranes doped with La2O3 is described together with their pore structure and microstructure. These nanostructrual membranes have been characterised using Al-27 MAS-NMR, TEM, BET, XRD and thermal analysis in an attempt to derive a comprehensive description. The membrane materials have been subjected to heat treatments ranging from 275 degrees C to 1200 degrees C in air. Doping the diphasic membrane has been shown to increase the transformation temperature of the low temperature phases (gamma-alumina and anatase) by as much as 200 degrees C. There is indication that La2O3 doping also retards the reorganisation of Al in the gamma-alumina phase preventing it from forming other intermediate aluminas. (C) 1999 Published by Elsevier Science Limited. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||T Technology > TP Chemical technology|
|Journal or Publication Title:||JOURNAL OF THE EUROPEAN CERAMIC SOCIETY|
|Publisher:||ELSEVIER SCI LTD|
|Number of Pages:||11|
|Page Range:||pp. 1847-1857|
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