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

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1983-1987
Number of pages5
JournalJournal of Applied Physics
Issue number4
StatePublished - Feb 15 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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