An Investigation of HDDR Phenomena in the Sms(Fe,V)29 Compound

David Book, Hajime Nakamura, Satoshi Sugimoto, Toshio Kagotani, Masuo Okada, Motofumi Homma

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1 Citation (Scopus)


Hydrogenation, Disproportionation, Desorption, Recombination (ILDDR) phenomena have been studied in the new magnetic phase, Sm3(Fe,V)2g. Samples of Sm3(Fe,V)29 were HDDR treated at various temperatures, from700°Cto 950°C. XRD measurements showed that the samples did not recombine into Sm3(Fe,V)29, but rather, recombined into a mixture of aTbCu7 type phase and a-Fe(V). An extra XRD peak was observed after HDDR at 950°Candit is possible that this extra peak can be attributed to Sm2(Fe,V)17, since heating Sm3(Fe,V)29 directly to 1100°C under hydrogen, results in recombination into Sm2(Fe,V)17 and a-Fe(V). Material with an intrinsic coercivity of 580kAm-i (7. 3kOe) was obtained after HDDR treatment at 800°C and nitrogenation at 560°C for 4 hours.

Original languageEnglish
Pages (from-to)1228-1231
Number of pages4
JournalMaterials Transactions, JIM
Issue number5
Publication statusPublished - 1996


  • Disproportionation reaction
  • HDDR
  • Nitrogenation
  • Recombination reaction
  • Sm(fe,v), tbcu-/ type,si3(fe, v)29

ASJC Scopus subject areas

  • Engineering(all)


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