Anisotropic Electric Conductivity and Battery Performance in C-axis Oriented Lanthanum Silicate Oxyapatite Prepared by Slip Casting in a Strong Magnetic Field

Tohru S. Suzuki; Satoshi Takahashi; Tetsuo Uchikoshi; Takamasa Ishigaki; Kiyoshi Kobayashi

doi:10.2320/matertrans.Y-M2019832

Anisotropic Electric Conductivity and Battery Performance in C-axis Oriented Lanthanum Silicate Oxyapatite Prepared by Slip Casting in a Strong Magnetic Field

Tohru S. Suzuki^*, Satoshi Takahashi, Tetsuo Uchikoshi, Takamasa Ishigaki, Kiyoshi Kobayashi

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

Lanthanum silicate oxyapatite (LSO) has superior properties as a solid electrolyte for solid oxide fuel cell (SOFC) applications. This is because LSO has a higher oxide-ion conductivity compared to yttria-stabilized zirconia at temperatures below 600°C. Textured LSO bulk ceramics were fabricated based on a magnetic field-assisted colloidal processing technique. The c-axis of the LSO was aligned parallel to the applied magnetic field during the consolidation by slip casting. The anisotropic electric conductivity of the textured bulk ceramics was evaluated by the impedance spectroscopy method. It was confirmed that very high conductivity was obtained along the c-axis. Higher fuel cell performance was demonstrated in the textured LSO compared to the random LSO.

Original language	English
Pages (from-to)	1949-1953
Number of pages	5
Journal	Materials Transactions
Volume	60
Issue number	9
DOIs	https://doi.org/10.2320/matertrans.Y-M2019832
Publication status	Published - 2019
Externally published	Yes

Keywords

Electric conductivity
Electric power generation
Magnetic field
Orientation
Sintering

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Anisotropic Electric Conductivity and Battery Performance in C-axis Oriented Lanthanum Silicate Oxyapatite Prepared by Slip Casting in a Strong Magnetic Field",

abstract = "Lanthanum silicate oxyapatite (LSO) has superior properties as a solid electrolyte for solid oxide fuel cell (SOFC) applications. This is because LSO has a higher oxide-ion conductivity compared to yttria-stabilized zirconia at temperatures below 600°C. Textured LSO bulk ceramics were fabricated based on a magnetic field-assisted colloidal processing technique. The c-axis of the LSO was aligned parallel to the applied magnetic field during the consolidation by slip casting. The anisotropic electric conductivity of the textured bulk ceramics was evaluated by the impedance spectroscopy method. It was confirmed that very high conductivity was obtained along the c-axis. Higher fuel cell performance was demonstrated in the textured LSO compared to the random LSO.",

keywords = "Electric conductivity, Electric power generation, Magnetic field, Orientation, Sintering",

author = "Suzuki, {Tohru S.} and Satoshi Takahashi and Tetsuo Uchikoshi and Takamasa Ishigaki and Kiyoshi Kobayashi",

note = "Funding Information: This work was partially supported by JSPS KAKENHI grant numbers JP25289264, JP26420690, and JP26420732. Publisher Copyright: {\textcopyright} 2019 Japan Society of Powder and Powder Metallurgy",

year = "2019",

doi = "10.2320/matertrans.Y-M2019832",

language = "English",

volume = "60",

pages = "1949--1953",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "Japan Institute of Metals (JIM)",

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AU - Suzuki, Tohru S.

AU - Takahashi, Satoshi

AU - Uchikoshi, Tetsuo

AU - Ishigaki, Takamasa

AU - Kobayashi, Kiyoshi

N1 - Funding Information: This work was partially supported by JSPS KAKENHI grant numbers JP25289264, JP26420690, and JP26420732. Publisher Copyright: © 2019 Japan Society of Powder and Powder Metallurgy

PY - 2019

Y1 - 2019

N2 - Lanthanum silicate oxyapatite (LSO) has superior properties as a solid electrolyte for solid oxide fuel cell (SOFC) applications. This is because LSO has a higher oxide-ion conductivity compared to yttria-stabilized zirconia at temperatures below 600°C. Textured LSO bulk ceramics were fabricated based on a magnetic field-assisted colloidal processing technique. The c-axis of the LSO was aligned parallel to the applied magnetic field during the consolidation by slip casting. The anisotropic electric conductivity of the textured bulk ceramics was evaluated by the impedance spectroscopy method. It was confirmed that very high conductivity was obtained along the c-axis. Higher fuel cell performance was demonstrated in the textured LSO compared to the random LSO.

AB - Lanthanum silicate oxyapatite (LSO) has superior properties as a solid electrolyte for solid oxide fuel cell (SOFC) applications. This is because LSO has a higher oxide-ion conductivity compared to yttria-stabilized zirconia at temperatures below 600°C. Textured LSO bulk ceramics were fabricated based on a magnetic field-assisted colloidal processing technique. The c-axis of the LSO was aligned parallel to the applied magnetic field during the consolidation by slip casting. The anisotropic electric conductivity of the textured bulk ceramics was evaluated by the impedance spectroscopy method. It was confirmed that very high conductivity was obtained along the c-axis. Higher fuel cell performance was demonstrated in the textured LSO compared to the random LSO.

KW - Electric conductivity

KW - Electric power generation

KW - Magnetic field

KW - Orientation

KW - Sintering

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M3 - Article

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SN - 1345-9678

VL - 60

SP - 1949

EP - 1953

JO - Materials Transactions

JF - Materials Transactions

IS - 9

ER -

Anisotropic Electric Conductivity and Battery Performance in C-axis Oriented Lanthanum Silicate Oxyapatite Prepared by Slip Casting in a Strong Magnetic Field

Abstract

Keywords

ASJC Scopus subject areas

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