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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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Details

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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