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Optimal control of the sintering strain rate of yttria-stabilized zirconia electrolytes for solid oxide fuel cells using a thermal-mechanical analyzer during the sintering process / Leo Chau-Kuang Liau in Industrial & engineering chemistry research, Vol. 48 N° 16 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7567–7573 Titre : Optimal control of the sintering strain rate of yttria-stabilized zirconia electrolytes for solid oxide fuel cells using a thermal-mechanical analyzer during the sintering process Type de document : texte imprimé Auteurs : Leo Chau-Kuang Liau, Auteur ; Rung-Kang Wu, Auteur Année de publication : 2009 Article en page(s) : pp. 7567–7573 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Sintering  process  model  Three-dimensional  yttria-stabilized  zirconia  tapes  Thermal−mechanical  analyzer Résumé : The optimal sintering trajectories of three-dimensional (3D) yttria-stabilized zirconia (YSZ) tapes were prepared using a dynamic optimization method under the controlled sintering strain. The sintering process model was carried out by the combination of both the heat transport equation and the dynamic equation of the sintering strain rate, constructed by thermal−mechanical analyzer (TMA) data. The heating pathway of a constrained strain rate case was determined numerically and was further experimentally carried out by the TMA test. Results show that the distribution of the strain rate in the ceramic tape was influenced by the sample size and heating conditions. The optimally sintered YSZ electrolyte showed better electronic performance than those with constant heating rates based on the conductivity tests. Therefore, the formation of the strain rate can be one of the factors that influenced the quality of the YSZ electrolyte in the sintering process. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801435e [article] Optimal control of the sintering strain rate of yttria-stabilized zirconia electrolytes for solid oxide fuel cells using a thermal-mechanical analyzer during the sintering process [texte imprimé] / Leo Chau-Kuang Liau, Auteur ; Rung-Kang Wu, Auteur . - 2009 . - pp. 7567–7573. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 16 (Août 2009) . - pp. 7567–7573 Mots-clés : Sintering  process  model  Three-dimensional  yttria-stabilized  zirconia  tapes  Thermal−mechanical  analyzer Résumé : The optimal sintering trajectories of three-dimensional (3D) yttria-stabilized zirconia (YSZ) tapes were prepared using a dynamic optimization method under the controlled sintering strain. The sintering process model was carried out by the combination of both the heat transport equation and the dynamic equation of the sintering strain rate, constructed by thermal−mechanical analyzer (TMA) data. The heating pathway of a constrained strain rate case was determined numerically and was further experimentally carried out by the TMA test. Results show that the distribution of the strain rate in the ceramic tape was influenced by the sample size and heating conditions. The optimally sintered YSZ electrolyte showed better electronic performance than those with constant heating rates based on the conductivity tests. Therefore, the formation of the strain rate can be one of the factors that influenced the quality of the YSZ electrolyte in the sintering process. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801435e