Development of functional properties in ceramics by microstructure control using a magnetic field

Tohru Suzuki

doi:10.4164/sptj.54.41

Development of functional properties in ceramics by microstructure control using a magnetic field

Tohru Suzuki^*

^*Corresponding author for this work

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

Abstract

Tailoring the crystallographic orientation in ceramics is very useful for improving their properties. A magnetic field is shown to be very effective in controlling the crystallographic orientation in bulk ceramics. The particles were rotated to an angle minimizing the system energy by a magnetic torque generated from the interaction between the magnetic anisotropy and the applied magnetic field. This processing was applied to control the microstructure in lanthanum silicate oxyapatite (LSO) for SOFC and LiCoO₂ for Li ion secondary battery. Electric conductivity parallel to the c-axis in the c-axis oriented LSO was higher than that perpendicular to the c-axis. The battery performance of the ideal textured cell fabricated using a rotating magnetic field has a significantly higher performance than a oriented cell prepared by a static magnetic field.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Journal of the Society of Powder Technology, Japan
Volume	54
Issue number	1
DOIs	https://doi.org/10.4164/sptj.54.41
Publication status	Published - 2017 Jan 1
Externally published	Yes

Keywords

Crystallographic orientation
Eectric conductivity
Eectrolyte
Fnctional ceramics
Magnetic field

ASJC Scopus subject areas

Process Chemistry and Technology
Catalysis
Filtration and Separation
Fluid Flow and Transfer Processes

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10.4164/sptj.54.41

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Development of functional properties in ceramics by microstructure control using a magnetic field

Abstract

Keywords

ASJC Scopus subject areas

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