Title
Preparation of barium titanate powders and colloidal processing in a strong (9.4 T) magnetic field Preparation of barium titanate powders and colloidal processing in a strong (9.4 T) magnetic field
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Amsterdam ,
Subject
Chemistry
Source (journal)
Materials letters. - Amsterdam
Volume/pages
67(2012) :1 , p. 154-157
ISSN
0167-577X
ISI
000298272200045
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Hydrothermally prepared BaTiO3 powders were tested inside a 9.4 T magnet. 5 vol.% and 15 vol.% BaTiO3 suspensions were slip casted inside a 9.4 T magnet and the sintered (1400 °C) compacts were XRD analysed. Texture degrees of 0.25 and 0.43 were calculated according to the lotgering method. 15 vol.% suspensions did not yield texture. High powder loadings may give colloidally stable suspensions with low viscosities. However, agglomerates inhibit the rotational freedom of individual particles in the strong magnetic field which resulted in not or weakly textured BaTiO3 at 15 vol.%.
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