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Thabet, K., Salle, A. L. G. L., Quarez, E. & Joubert, O. (2019) High Performance Dense Proton Ceramic Electrolyte Material Obtained by Cold Sintering Process. ECS Trans. 91 983–996.
Added by: Richard Baschera (2019-12-03 16:50:49) Last edited by: Richard Baschera (2019-12-03 16:51:36) |
| Type de référence: Article DOI: 10.1149/09101.0983ecst Numéro d'identification (ISBN etc.): 1938-5862, 1938-6737 Clé BibTeX: Thabet2019 Voir tous les détails bibliographiques  |
Catégories: ST2E Créateurs: Joubert, Quarez, Salle, Thabet Collection: ECS Trans. |
Consultations : 1/358
Indice de consultation : 4% Indice de popularité : 1% |
| Liens URLs http://ecst.ecsdl.org/content/91/1/983 |
| Résumé |
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The cold sintering process (CSP) was applied for the first time to the high temperature proton conductor BaCe0.8Zr0.1Y0.1O3-δ. The CSP parameters were optimized in order to obtain the best relative density: the amount of water 0-20 wt.%, the pressing temperature 120-180°C and the pressure ranges between 125 to 500 MPa (for 30 minutes). We demonstrate the ability of CSP to achieve a relative density of 83% at only 180°C and 375 MPa using 5 wt.% water. It has been found that a post CSP annealing at 100°C improves the material relative density which reaches 93%. Ceramic materials were investigated for their microstructure-electrochemical properties relations. The ionic conductivity was measured between 150 and 800°C on dense and well defined microstructure materials. When the annealing temperature increases from 1000, 1100, 1200°C a large increase of the conductivity is observed reaching 2.3x10-2 S·cm-1 at 700°C for pellet sintered 10 h at 1200°C.
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