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Abstract
Ultrafast high-temperature sintering (UHS) is an innovative sintering technique that can densify ceramics in a few seconds, dramatically reducing the carbon footprint and firing costs. In this work, the feasibility of applying UHS in Gd-doped ceria (GDC) and GDC-Er-stabilized bismuth oxide (ESB) composite powders was investigated. At high UHS currents (22-24 A), a fully dense GDC sample with a large grain size was obtained. Nonetheless, most of the GDC pellets exhibited micro/macro cracks, which were reduced by lowering the sample thickness. Moreover, the GDC-ESB composite sample exhibits no cracks or fragmentation at all, thanks to ESB as a sintering aid. This type of sample was further characterized from an electrochemical and electromechanical point of view. The GDC-ESB material displays an ionic conductivity value of ~1.5 x 10−2 S/cm at 600 °C and frequency-stable (0.1-350 Hz) room temperature electrostriction strain coefficient of ~10−18 (m/V)2.
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Authors (7)
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Ahsanul Kabir
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Emanuele De Bona
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Maxim Varenik
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Mattia Biesuz
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.oceram.2024.100551
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Open Ceramics
no. 17,
ISSN: - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Kabir A., Lemieszek B., Karczewski J., De Bona E., Varenik M., Molin S., Biesuz M.: Ultrafast high-temperature sintering (UHS) of cerium oxide-based compound// Open Ceramics -Vol. 17, (2024), s.100551-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.oceram.2024.100551
- Sources of funding:
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- PRIME programme of the German Academic Exchange Service (DAAD) with funds from the German Federal Ministry of Education and Research (BMBF) and JECS Trust-Fund Contract-2021275 and Departments of Excellence 2023–27” program (L.232/2016)
- Verified by:
- Gdańsk University of Technology
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