Article (Scientific journals)
YBa2Cu3O7−x dispersion in iodine acetone for electrophoretic deposition: Surface charging mechanism in a halogenated organic media
Dusoulier, Laurent; Cloots, Rudi; Vertruyen, Bénédicte et al.
2011In Journal of the European Ceramic Society, 31, p. 1075-1086
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Keywords :
suspensions; shaping; oxide superconductors
Abstract :
[en] Electrophoretic deposition (EPD) performance strongly depends on the particles surface chemistry and the ability to manipulate surface–liquid interfaces. In this study an extensive investigation of YBCO suspension in dry acetone, acetone–water mixtures and acetone–iodine is reported. Chemical instability of YBCO particles determines their colloidal behaviour. Charging mechanism of particles has therefore had to be deeply investigated for complete dispersion understanding. In order to determine the conditions of the YBCO suspension stability, measurements of pH, conductivity, zeta-potential, settling tests, modelling of the particle networks and electrophoretic deposition were done. The influence of the water and iodine concentration, and their role as stabilizers was evaluated. Based on experimental results, pair particle potentials were calculated and then different charging mechanisms of YBCO surfaces in acetone were proposed.
Disciplines :
Chemistry
Author, co-author :
Dusoulier, Laurent;  Université de Liège and Royal Military Academy (Brussels)
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Moreno, Rodrigo;  Institutio de Ceramica y Vidrio, CSIC, Madrid (Spain)
Burgos-Montes, O.;  Instituto de Ciencias de la Construccion Eduardo Torroja, CSIC, Madrid (Spain)
Ferrari, Begona;  Institutio de Ceramica y Vidrio, CSIC, Madrid (Spain)
Language :
English
Title :
YBa2Cu3O7−x dispersion in iodine acetone for electrophoretic deposition: Surface charging mechanism in a halogenated organic media
Publication date :
2011
Journal title :
Journal of the European Ceramic Society
ISSN :
0955-2219
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
31
Pages :
1075-1086
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Spanish Science and Education Ministry
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