Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering

Ahsanul Kabir; Haiwu Zhang; Sofie Colding-Jørgensen; Simone Santucci; Sebastian Molin; Vincenzo Esposito

doi:10.1016/j.scriptamat.2020.06.003

Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering

Ahsanul Kabir^*
, Haiwu Zhang
, Sofie Colding-Jørgensen
, Simone Santucci
, Sebastian Molin
, Vincenzo Esposito

^*Corresponding author for this work

Gdańsk University of Technology

Research output: Contribution to journal › Journal article › Research › peer-review

97 Downloads (Orbit)

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.

Original language	English
Journal	Scripta Materialia
Volume	187
Pages (from-to)	183-187
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2020.06.003
Publication status	Published - 2020

Access to Document

10.1016/j.scriptamat.2020.06.003

FulltextAccepted author manuscript, 649 KBLicence: CC BY-NC-ND

OpenUrl availability

Check availability in DTU Findit

Cite this

@article{9eb50e2a8b724b7690450afe0c33c620,

title = "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.",

author = "Ahsanul Kabir and Haiwu Zhang and Sofie Colding-J{\o}rgensen and Simone Santucci and Sebastian Molin and Vincenzo Esposito",

year = "2020",

doi = "10.1016/j.scriptamat.2020.06.003",

language = "English",

volume = "187",

pages = "183--187",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering

AU - Kabir, Ahsanul

AU - Zhang, Haiwu

AU - Colding-Jørgensen, Sofie

AU - Santucci, Simone

AU - Molin, Sebastian

AU - Esposito, Vincenzo

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

U2 - 10.1016/j.scriptamat.2020.06.003

DO - 10.1016/j.scriptamat.2020.06.003

M3 - Journal article

SN - 1359-6462

VL - 187

SP - 183

EP - 187

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this