Effects of Ca2+ and Cu2+ doping on sintering and electrical properties of La0.85Sr0.15CrO3

Xiao Fang Zhu; Hai Tao Gu; Han Chen; Lu Cun Guo

Effects of Ca²⁺ and Cu²⁺ doping on sintering and electrical properties of La_0.85Sr_0.15CrO₃

Xiao Fang Zhu, Hai Tao Gu, Han Chen, Lu Cun Guo

College of Materials Science and Engineering

Nanjing Tech University

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

Abstract

La_0.85Sr_0.15CrO₃ is commonly used as the ceramic interconnect material for solid oxide fuel cell (SOFC) applications. However, it is difficult to sinter this type of material to high density. The effects of Ca²⁺ and Cu²⁺ doping substitution on the sintering characteristics, thermal expansion and electrical conductivity properties of La_0.85Sr_0.15-xCa_x Cr_1-yCu_yO₃ were investigated. It was found that the electrical conductivity of La_0.85Sr_0.15CrO₃ was effectively improved at x=0.05 and y=0, a peak value of 20.1 S/cm was obtained at 800°C. The study of La and Cr co-doping found that the sintering temperature of the sample was reduced by 100°C at x=0.05 and y=0.05, while the bulk density was increased by 31.6%. Meanwhile, the thermal expansion coefficient of samples was compared with that of 8YSZ electrolyte.

Original language	English
Pages (from-to)	126-128+133
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	32
Issue number	1
State	Published - Feb 2010

Keywords

Electrical conductivity
Interconnect
SOFC
Sintering ability
TEC

Cite this

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title = "Effects of Ca2+ and Cu2+ doping on sintering and electrical properties of La0.85Sr0.15CrO3",

abstract = "La0.85Sr0.15CrO3 is commonly used as the ceramic interconnect material for solid oxide fuel cell (SOFC) applications. However, it is difficult to sinter this type of material to high density. The effects of Ca2+ and Cu2+ doping substitution on the sintering characteristics, thermal expansion and electrical conductivity properties of La0.85Sr0.15-xCax Cr1-yCuyO3 were investigated. It was found that the electrical conductivity of La0.85Sr0.15CrO3 was effectively improved at x=0.05 and y=0, a peak value of 20.1 S/cm was obtained at 800°C. The study of La and Cr co-doping found that the sintering temperature of the sample was reduced by 100°C at x=0.05 and y=0.05, while the bulk density was increased by 31.6%. Meanwhile, the thermal expansion coefficient of samples was compared with that of 8YSZ electrolyte.",

keywords = "Electrical conductivity, Interconnect, SOFC, Sintering ability, TEC",

author = "Zhu, {Xiao Fang} and Gu, {Hai Tao} and Han Chen and Guo, {Lu Cun}",

year = "2010",

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language = "英语",

volume = "32",

pages = "126--128+133",

journal = "Yadian Yu Shengguang/Piezoelectrics and Acoustooptics",

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TY - JOUR

T1 - Effects of Ca2+ and Cu2+ doping on sintering and electrical properties of La0.85Sr0.15CrO3

AU - Zhu, Xiao Fang

AU - Gu, Hai Tao

AU - Chen, Han

AU - Guo, Lu Cun

PY - 2010/2

Y1 - 2010/2

N2 - La0.85Sr0.15CrO3 is commonly used as the ceramic interconnect material for solid oxide fuel cell (SOFC) applications. However, it is difficult to sinter this type of material to high density. The effects of Ca2+ and Cu2+ doping substitution on the sintering characteristics, thermal expansion and electrical conductivity properties of La0.85Sr0.15-xCax Cr1-yCuyO3 were investigated. It was found that the electrical conductivity of La0.85Sr0.15CrO3 was effectively improved at x=0.05 and y=0, a peak value of 20.1 S/cm was obtained at 800°C. The study of La and Cr co-doping found that the sintering temperature of the sample was reduced by 100°C at x=0.05 and y=0.05, while the bulk density was increased by 31.6%. Meanwhile, the thermal expansion coefficient of samples was compared with that of 8YSZ electrolyte.

AB - La0.85Sr0.15CrO3 is commonly used as the ceramic interconnect material for solid oxide fuel cell (SOFC) applications. However, it is difficult to sinter this type of material to high density. The effects of Ca2+ and Cu2+ doping substitution on the sintering characteristics, thermal expansion and electrical conductivity properties of La0.85Sr0.15-xCax Cr1-yCuyO3 were investigated. It was found that the electrical conductivity of La0.85Sr0.15CrO3 was effectively improved at x=0.05 and y=0, a peak value of 20.1 S/cm was obtained at 800°C. The study of La and Cr co-doping found that the sintering temperature of the sample was reduced by 100°C at x=0.05 and y=0.05, while the bulk density was increased by 31.6%. Meanwhile, the thermal expansion coefficient of samples was compared with that of 8YSZ electrolyte.

KW - Electrical conductivity

KW - Interconnect

KW - SOFC

KW - Sintering ability

KW - TEC

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M3 - 文章

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SN - 1004-2474

VL - 32

SP - 126-128+133

JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

IS - 1

ER -

Effects of Ca²⁺ and Cu²⁺ doping on sintering and electrical properties of La_0.85Sr_0.15CrO₃

Abstract

Keywords

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