Effect of grain growth inhibitors on the hysteresis properties of Nd10Fe82C6B2 melt-spun alloys

M. Daniil, Y. Zhang, H. Okumura, G. C. Hadjipanayis, D. J. Sellmyer

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

An effort has been made to improve the coercivity of nanocomposite Nd10 Fe82 C6 B2 alloys, using small amounts (up to 1 at%) of Cr, Ti, Nb, Zr, and Ga. X-ray studies revealed that the amount of α-Fe phase in both as-spun and annealed ribbons was significantly reduced for Nb and Zr substitutions, but increased for all the other substitutions. From the magnetic properties point of view, Zr (1 at%) was proven to be the most advantageous of all, since it increased the coercivity of annealed ribbons from 3.2 to 4.8 kOe and the maximum energy product from 5.8 to 13 MGOe. This improvement is associated with the much finer and more uniform microstructure as was revealed by transmission electron microscopy.

Original languageEnglish (US)
Pages (from-to)2973-2975
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
StatePublished - Sep 2002
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

Keywords

  • 2:14:1 carbides
  • Grain growth inhibitors
  • Nanocomposite magnets

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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