caa a22 4500 388020725 CHVBK 20180307124923.0 cr unu---uuuuu 161130e199803 xx s 000 0 eng 10.1557/JMR.1998.0083 doi S088429140004320X pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0083 Preparation of ceria-gadolinia electrolytes by the tape rolling technique [Elektronische Daten] The preparation of thin (ca. 200 μm) Ce0.9Gd0.1O1.95 planar electrolytes using the tape rolling technique is described. The processing and formation of these electrolytes involved several steps: (i) the production of a processable ceramic paste, (ii) rolling and cutting, (iii) binder burnout, and (iv) sintering. The rheology of these ceramic pastes is characterized by a hardness indentation test. The materials parameters which may be obtained from the hardness indentation test such as the hardness (plastic flow stress), elastic modulus, and plasticity index are provided. The rheology, as characterized by the hardness method, of the pastes is shown to be influenced by the nature and extent of processing aids and also the mixing and milling times. Further, it is shown that by using a paste formulation with appropriate rheological properties, it is possible to produce uniform thin green tapes using a twin roll mill. The binder burnout characteristics of the ceramic pastes were studied by using a specially constructed thermal gravimetric apparatus. It is shown that the heating rate and the ambient atmosphere have strong influences upon the binder burnout kinetics of these green tapes. Finally, it is shown that sintered Ce0.9Gd0.1O1.9 electrolytes, with a near theoretical density and with a uniform microstructure as well as a chosen near net shape, may be prepared from the corresponding tape rolled greens. Copyright © Materials Research Society 1998 Özkan Necati The Particle Technology Group, Department of Chemical Engineering, Imperial College of Science, Technology, and Medicine, London, SW7 2BY, United Kingdom Briscoe Brian J. The Particle Technology Group, Department of Chemical Engineering, Imperial College of Science, Technology, and Medicine, London, SW7 2BY, United Kingdom Journal of Materials Research Cambridge University Press 13/3(1998-03), 665-674 0884-2914 13:3<665 1998 13 JMR https://doi.org/10.1557/JMR.1998.0083 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0083 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Özkan Necati The Particle Technology Group, Department of Chemical Engineering, Imperial College of Science, Technology, and Medicine, London, SW7 2BY, United Kingdom NATIONALLICENCE 700 1- Briscoe Brian J. The Particle Technology Group, Department of Chemical Engineering, Imperial College of Science, Technology, and Medicine, London, SW7 2BY, United Kingdom NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/3(1998-03), 665-674 0884-2914 13:3<665 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge