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Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering
Abstract
Recent investigations have shown that highly oxygen defective cerium oxides generate non-classical electrostriction that is superior to lead-based ferroelectrics. In this work, we report the effect of field-assisted spark plasma sintering (SPS) on electro-chemo-mechanical properties of calcium doped ceria (CDC). Nanometric powders of Ca.10 nm are rapidly consolidated to form polycrystalline nanostructures with a high degree of crystalline disorder. Remarkably, the resultant material demonstrates a large electromechanical strain without a frequency-related relaxation effect. We conclude that electromechanical activity in CDC materials strictly depends on the Ca2+- interaction, while disorder at the crystalline boundaries has a minor effect.
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Authors (6)
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Ahsanul Kabir
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Haiwu Zhang
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Sofie Colding-Jørgensen
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Simone Santucci
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Vincenzo Esposito
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.scriptamat.2020.06.003
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
SCRIPTA MATERIALIA
no. 187,
pages 183 - 187,
ISSN: 1359-6462 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Kabir A., Zhang H., Colding-Jørgensen S., Santucci S., Molin S., Esposito V.: Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering// SCRIPTA MATERIALIA -Vol. 187, (2020), s.183-187
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.scriptamat.2020.06.003
- Verified by:
- Gdańsk University of Technology
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