Influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple

Mikiya Wakimoto; Takashi Teranishi; Hidetaka Hayashi; Akira Kishimoto

doi:10.2497/jjspm.63.981

Influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple

Mikiya Wakimoto, Takashi Teranishi, Hidetaka Hayashi, Akira Kishimoto

School of Engineering

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

Abstract

We investigated the influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple. The interdiffusion coefficient as well as the moving distance of Matano interface under the millimeter-wave radiation increased in comparison with those under conventional heating method. The activation energy of interdiffusion under millimeter-wave irradiation was found to be lower than that obtained under conventional heating. The intrinsic diffusion for Ce⁴⁺ was enhanced, although that for Zr⁴⁺ remained almost unchanged. The relative degrees of enhancement could be interpreted by differences in MMW absorptivity between the two ceramics.

Original language	English
Pages (from-to)	981-985
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	63
Issue number	11
DOIs	https://doi.org/10.2497/jjspm.63.981
Publication status	Published - Oct 2016

Keywords

Fluorite structure
Inter-diffusion
Millimeter-wave heating

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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abstract = "We investigated the influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple. The interdiffusion coefficient as well as the moving distance of Matano interface under the millimeter-wave radiation increased in comparison with those under conventional heating method. The activation energy of interdiffusion under millimeter-wave irradiation was found to be lower than that obtained under conventional heating. The intrinsic diffusion for Ce4+ was enhanced, although that for Zr4+ remained almost unchanged. The relative degrees of enhancement could be interpreted by differences in MMW absorptivity between the two ceramics.",

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T1 - Influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple

AU - Wakimoto, Mikiya

AU - Teranishi, Takashi

AU - Hayashi, Hidetaka

AU - Kishimoto, Akira

PY - 2016/10

Y1 - 2016/10

N2 - We investigated the influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple. The interdiffusion coefficient as well as the moving distance of Matano interface under the millimeter-wave radiation increased in comparison with those under conventional heating method. The activation energy of interdiffusion under millimeter-wave irradiation was found to be lower than that obtained under conventional heating. The intrinsic diffusion for Ce4+ was enhanced, although that for Zr4+ remained almost unchanged. The relative degrees of enhancement could be interpreted by differences in MMW absorptivity between the two ceramics.

AB - We investigated the influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple. The interdiffusion coefficient as well as the moving distance of Matano interface under the millimeter-wave radiation increased in comparison with those under conventional heating method. The activation energy of interdiffusion under millimeter-wave irradiation was found to be lower than that obtained under conventional heating. The intrinsic diffusion for Ce4+ was enhanced, although that for Zr4+ remained almost unchanged. The relative degrees of enhancement could be interpreted by differences in MMW absorptivity between the two ceramics.

KW - Fluorite structure

KW - Inter-diffusion

KW - Millimeter-wave heating

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Influence of millimeter-wave irradiation on the cation interdiffusion of ceria/zirconia ceramic couple

Abstract

Keywords

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