Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca0.6Sr0.4TiO3 ceramics

Lin Zhang; Zhonghua Yao; Michael T. Lanagan; Hua Hao; Juan Xie; Qi Xu; Mengxue Yuan; Maryam Sarkarat; Minghe Cao; Hanxing Liu

doi:10.1016/j.jeurceramsoc.2018.01.027

Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca_0.6Sr_0.4TiO₃ ceramics

Lin Zhang
, Zhonghua Yao
, Michael T. Lanagan
, Hua Hao
, Juan Xie
, Qi Xu
, Mengxue Yuan
, Maryam Sarkarat
, Minghe Cao
, Hanxing Liu

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

Different oxygen treatment methods, including O₂ and N₂ annealing, were conducted on Ca_0.6Sr_0.4TiO₃ (CST) ceramics with varying Mn content (0 mol%, 0.5 mol% and 2.0 mol%). Structure characterization, including XRD and SEM, indicated the minimal effect of annealing on the microstructure. Grain boundaries were found to be sensitive to oxygen treatments, and annealing in O₂ resulted in increased grain boundary resistance, while in N₂ led to the opposite result. The insulating properties of bulk ceramics were found to be dominated by grain boundaries. Both the concentration and mobility of oxygen vacancies were confirmed to affect the energy storage properties to some extent in this work.

Original language	English (US)
Pages (from-to)	2534-2540
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	38
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2018.01.027
State	Published - Jun 2018

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2018.01.027

Cite this

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title = "Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca0.6Sr0.4TiO3 ceramics",

abstract = "Different oxygen treatment methods, including O2 and N2 annealing, were conducted on Ca0.6Sr0.4TiO3 (CST) ceramics with varying Mn content (0 mol\%, 0.5 mol\% and 2.0 mol\%). Structure characterization, including XRD and SEM, indicated the minimal effect of annealing on the microstructure. Grain boundaries were found to be sensitive to oxygen treatments, and annealing in O2 resulted in increased grain boundary resistance, while in N2 led to the opposite result. The insulating properties of bulk ceramics were found to be dominated by grain boundaries. Both the concentration and mobility of oxygen vacancies were confirmed to affect the energy storage properties to some extent in this work.",

author = "Lin Zhang and Zhonghua Yao and Lanagan, \{Michael T.\} and Hua Hao and Juan Xie and Qi Xu and Mengxue Yuan and Maryam Sarkarat and Minghe Cao and Hanxing Liu",

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year = "2018",

month = jun,

doi = "10.1016/j.jeurceramsoc.2018.01.027",

language = "English (US)",

volume = "38",

pages = "2534--2540",

journal = "Journal of the European Ceramic Society",

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TY - JOUR

T1 - Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca0.6Sr0.4TiO3 ceramics

AU - Zhang, Lin

AU - Yao, Zhonghua

AU - Lanagan, Michael T.

AU - Hao, Hua

AU - Xie, Juan

AU - Xu, Qi

AU - Yuan, Mengxue

AU - Sarkarat, Maryam

AU - Cao, Minghe

AU - Liu, Hanxing

PY - 2018/6

Y1 - 2018/6

N2 - Different oxygen treatment methods, including O2 and N2 annealing, were conducted on Ca0.6Sr0.4TiO3 (CST) ceramics with varying Mn content (0 mol%, 0.5 mol% and 2.0 mol%). Structure characterization, including XRD and SEM, indicated the minimal effect of annealing on the microstructure. Grain boundaries were found to be sensitive to oxygen treatments, and annealing in O2 resulted in increased grain boundary resistance, while in N2 led to the opposite result. The insulating properties of bulk ceramics were found to be dominated by grain boundaries. Both the concentration and mobility of oxygen vacancies were confirmed to affect the energy storage properties to some extent in this work.

AB - Different oxygen treatment methods, including O2 and N2 annealing, were conducted on Ca0.6Sr0.4TiO3 (CST) ceramics with varying Mn content (0 mol%, 0.5 mol% and 2.0 mol%). Structure characterization, including XRD and SEM, indicated the minimal effect of annealing on the microstructure. Grain boundaries were found to be sensitive to oxygen treatments, and annealing in O2 resulted in increased grain boundary resistance, while in N2 led to the opposite result. The insulating properties of bulk ceramics were found to be dominated by grain boundaries. Both the concentration and mobility of oxygen vacancies were confirmed to affect the energy storage properties to some extent in this work.

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U2 - 10.1016/j.jeurceramsoc.2018.01.027

DO - 10.1016/j.jeurceramsoc.2018.01.027

M3 - Article

AN - SCOPUS:85041180409

SN - 0955-2219

VL - 38

SP - 2534

EP - 2540

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Effect of oxygen treatment on structure and electrical properties of Mn-doped Ca_0.6Sr_0.4TiO₃ ceramics

Abstract

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