Nitrogen Absorption by Sm2Fe17

Hirohisa UCHIDA; Takashi KAWANABE; Shingo TACHIBANA; Kazuki KINOSHITA; Yoshihito MATSUMURA; Masayoshi TADA; Haru-Hisa UCHIDA; Hideo KANEKO; Tsunehisa KURINO; Masashi SATO

doi:10.2109/jcersj.114.896

Special Issue by Guest Editors Dedicated to Prof. Günter Petzow: Modern Trends in Advanced Ceramics: Reviews

Nitrogen Absorption by Sm₂Fe₁₇

Hirohisa UCHIDA, Takashi KAWANABE, Shingo TACHIBANA, Kazuki KINOSHITA, Yoshihito MATSUMURA, Masayoshi TADA, Haru-Hisa UCHIDA, Hideo KANEKO, Tsunehisa KURINO, Masashi SATO

Author information

Hirohisa UCHIDA
Department of Energy Science and Engineering, School of Engineering, Tokai University
Takashi KAWANABE
Department of Energy Science and Engineering, School of Engineering, Tokai University
Shingo TACHIBANA
Department of Energy Science and Engineering, School of Engineering, Tokai University
Kazuki KINOSHITA
Department of Energy Science and Engineering, School of Engineering, Tokai University
Yoshihito MATSUMURA
Department of Energy Science and Engineering, School of Engineering, Tokai University
Masayoshi TADA
Department of Material Sciences, School of Engineering, Tokai University
Haru-Hisa UCHIDA
Department of Human Development, Environmental and Resources, School of Humanities and Culture, Tokai University
Hideo KANEKO
The Society of Non-Traditional Technology
Tsunehisa KURINO
The Society of Non-Traditional Technology
Masashi SATO
Department of Energy Science and Engineering, School of Engineering, Tokai University

Keywords: Nitromagnetics, Gas-solid reaction, Crystal structure, Thermodynamic properties, Phase diagram, Kinetics, Diffusion, Sm₂Fe₁₇

JOURNAL FREE ACCESS

2006 Volume 114 Issue 1335 Pages 896-901

DOI https://doi.org/10.2109/jcersj.114.896

Details

Abstract

This paper reviews typical and significant behaviours of the Sm₂Fe₁₇-N₂ system which is potentially of significance as a nitromagnetic material (metal nitride magnetic material). This paper is focusing on the processes of the N₂ absorption by the Sm₂Fe₁₇ and summarises results: (i) the crystal structure of Sm₂Fe₁₇N_x and the significance of N atoms as an interstitial in the alloy, (ii) thermodynamic properties and a partial phase diagram of the Sm₂Fe₁₇-N₂ system based on pressure-composition-temperature (PCT) measurements, and (iii) the mechanism of N₂ absorption by the Sm₂Fe₁₇ based on kinetic measurements and on catalytic behaviours on the alloy surface.

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