Nitrogenation of the magnetic compound R(Fe,M)12

Jinbo Yang; Weihua Mao; Yingchang Yang; Senlin Ge; Zhenjie Zhao; Fashen Li

doi:10.1063/1.366926

Nitrogenation of the magnetic compound R(Fe,M)₁₂

Jinbo Yang, Weihua Mao, Yingchang Yang, Senlin Ge, Zhenjie Zhao, Fashen Li

Radiation Oncology

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Abstract

The diffusion mechanism of nitrogen atoms in ThMn₁₂-type crystal structure compounds was investigated by using x-ray diffraction, Mössbauer spectroscopy measurements, thermopiezic analysis, and differential thermal analysis. The studies indicate that the distribution of nitrogen atoms in a R(Fe,M)₁₂ particles with intermediate N content is characterized by a nitrided region and an unnitrided region. The results confirmed that this two-phase region is stable, and the nitrogen atoms do not diffuse further into the particle. Based on the characteristics of the nitrogenation, a trapping diffusion model is applied to the R(Fe,M)₁₂ system. On the basis of this study high performance magnetic powders of NdFe_10.5Mo_1.5N_X were successfully prepared.

Original language	English (US)
Pages (from-to)	1983-1987
Number of pages	5
Journal	Journal of Applied Physics
Volume	83
Issue number	4
DOIs	https://doi.org/10.1063/1.366926
State	Published - Feb 15 1998

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Nitrogenation of the magnetic compound R(Fe,M)12",

abstract = "The diffusion mechanism of nitrogen atoms in ThMn12-type crystal structure compounds was investigated by using x-ray diffraction, M{\"o}ssbauer spectroscopy measurements, thermopiezic analysis, and differential thermal analysis. The studies indicate that the distribution of nitrogen atoms in a R(Fe,M)12 particles with intermediate N content is characterized by a nitrided region and an unnitrided region. The results confirmed that this two-phase region is stable, and the nitrogen atoms do not diffuse further into the particle. Based on the characteristics of the nitrogenation, a trapping diffusion model is applied to the R(Fe,M)12 system. On the basis of this study high performance magnetic powders of NdFe10.5Mo1.5NX were successfully prepared.",

author = "Jinbo Yang and Weihua Mao and Yingchang Yang and Senlin Ge and Zhenjie Zhao and Fashen Li",

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T1 - Nitrogenation of the magnetic compound R(Fe,M)12

AU - Yang, Jinbo

AU - Mao, Weihua

AU - Yang, Yingchang

AU - Ge, Senlin

AU - Zhao, Zhenjie

AU - Li, Fashen

PY - 1998/2/15

Y1 - 1998/2/15

N2 - The diffusion mechanism of nitrogen atoms in ThMn12-type crystal structure compounds was investigated by using x-ray diffraction, Mössbauer spectroscopy measurements, thermopiezic analysis, and differential thermal analysis. The studies indicate that the distribution of nitrogen atoms in a R(Fe,M)12 particles with intermediate N content is characterized by a nitrided region and an unnitrided region. The results confirmed that this two-phase region is stable, and the nitrogen atoms do not diffuse further into the particle. Based on the characteristics of the nitrogenation, a trapping diffusion model is applied to the R(Fe,M)12 system. On the basis of this study high performance magnetic powders of NdFe10.5Mo1.5NX were successfully prepared.

AB - The diffusion mechanism of nitrogen atoms in ThMn12-type crystal structure compounds was investigated by using x-ray diffraction, Mössbauer spectroscopy measurements, thermopiezic analysis, and differential thermal analysis. The studies indicate that the distribution of nitrogen atoms in a R(Fe,M)12 particles with intermediate N content is characterized by a nitrided region and an unnitrided region. The results confirmed that this two-phase region is stable, and the nitrogen atoms do not diffuse further into the particle. Based on the characteristics of the nitrogenation, a trapping diffusion model is applied to the R(Fe,M)12 system. On the basis of this study high performance magnetic powders of NdFe10.5Mo1.5NX were successfully prepared.

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Nitrogenation of the magnetic compound R(Fe,M)₁₂

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