Ultrafast high-temperature sintering (UHS) is a rapidly growing research area of material science and engineering. Herein we present UHS of gadolinia-doped ceria (GDC) powders in single and multi-step approaches. The sintered ceramics were characterized from a physical and electrochemical point of view. When the power is applied gradually during the multistep UHS process crack-free GDC ceramics can be obtained with 95 % bulk density using commercial powder. Oxalate converted GDC powder gave 86 % bulk density with the same multistep sintering process. Additionally, it is shown that multistep UHS is also suitable for multilayer co-sintering necessary for solid oxide fuel cells (SOFC), as demonstrated by the production of dense GDC electrolyte in tight contact with porous electrodes.

Ultrafast high-temperature sintering of gadolinia-doped ceria / Alemayehu, Adam; Biesuz, Mattia; Javan, Kimia Y.; Tkach, Alexander; Vilarinho, Paula M.; Sglavo, Vincenzo M.; Tyrpekl, Vaclav. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 43:11(2023), pp. 4837-4843. [10.1016/j.jeurceramsoc.2023.04.025]

Ultrafast high-temperature sintering of gadolinia-doped ceria

Biesuz, Mattia
Secondo
;
Sglavo, Vincenzo M.
Penultimo
;
2023-01-01

Abstract

Ultrafast high-temperature sintering (UHS) is a rapidly growing research area of material science and engineering. Herein we present UHS of gadolinia-doped ceria (GDC) powders in single and multi-step approaches. The sintered ceramics were characterized from a physical and electrochemical point of view. When the power is applied gradually during the multistep UHS process crack-free GDC ceramics can be obtained with 95 % bulk density using commercial powder. Oxalate converted GDC powder gave 86 % bulk density with the same multistep sintering process. Additionally, it is shown that multistep UHS is also suitable for multilayer co-sintering necessary for solid oxide fuel cells (SOFC), as demonstrated by the production of dense GDC electrolyte in tight contact with porous electrodes.
2023
11
Alemayehu, Adam; Biesuz, Mattia; Javan, Kimia Y.; Tkach, Alexander; Vilarinho, Paula M.; Sglavo, Vincenzo M.; Tyrpekl, Vaclav
Ultrafast high-temperature sintering of gadolinia-doped ceria / Alemayehu, Adam; Biesuz, Mattia; Javan, Kimia Y.; Tkach, Alexander; Vilarinho, Paula M.; Sglavo, Vincenzo M.; Tyrpekl, Vaclav. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 43:11(2023), pp. 4837-4843. [10.1016/j.jeurceramsoc.2023.04.025]
File in questo prodotto:
File Dimensione Formato  
adam gdc.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.21 MB
Formato Adobe PDF
4.21 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/379849
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 4
social impact