Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles

Tajima, Shin; Hattori, Takeshi; Kato, Yoshio

doi:10.1109/20.489700

Title: Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles

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Abstract

Ball milling conditions were examined for the preparation of fine Sm{sub 2}Fe{sub 17}N{sub 3} particles. The milling process with high ball/bottle volume ratio produced Sm{sub 2}Fe{sub 17}N{sub 3} particles with low {sub i}H{sub c} and 4{pi}I{sub r} and {sub i}H{sub c} were attributed to particle aggregates which were formed during the milling. The addition of a surfactant (e.g. polystearic acid) prevented aggregation in the ball milling, and yielded high-performance Sm{sub 2}Fe{sub 17}N{sub 3} (4{pi}I{sub r}: 14.1 kG, {sub i}H{sub c}: 9 kOe, (BH)max: 34 MGOe); cf. (BH)max = 20 MGOe for typical epoxy-bonded magnets.

Authors:

Tajima, Shin; Hattori, Takeshi; Kato, Yoshio ^[1]

Toyota CRDL, Nagakute, Aichi (Japan)

Publication Date:: Wed Nov 01 00:00:00 EST 1995

OSTI Identifier:: 186952

Report Number(s):: CONF-950404-
Journal ID: IEMGAQ; ISSN 0018-9464; TRN: IM9609%%225

Resource Type:: Journal Article

Journal Name:: IEEE Transactions on Magnetics

Additional Journal Information:: Journal Volume: 31; Journal Issue: 6Pt2; Conference: Conference on magnetism and magnetic materials, San Antonio, TX (United States), 18-21 Apr 1995; Other Information: PBD: Nov 1995

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; SAMARIUM NITRIDES; MILLING; MAGNETIC PROPERTIES; IRON NITRIDES; EXPERIMENTAL DATA; PERMANENT MAGNETS; COERCIVE FORCE; MAGNETIZATION

Citation Formats


                    Tajima, Shin, Hattori, Takeshi, and Kato, Yoshio. Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles.  United States: N. p., 1995. 
        Web.  doi:10.1109/20.489700.

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                    Tajima, Shin, Hattori, Takeshi, & Kato, Yoshio. Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles.  United States.  https://doi.org/10.1109/20.489700

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                    Tajima, Shin, Hattori, Takeshi, and Kato, Yoshio. 1995.  
        "Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles".  United States.  https://doi.org/10.1109/20.489700.

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@article{osti_186952,

  title        = {Influence of milling conditions on magnetic properties of Sm{sub 2}Fe{sub 17}N{sub 3} particles},

  author       = {Tajima, Shin and Hattori, Takeshi and Kato, Yoshio},

  abstractNote = {Ball milling conditions were examined for the preparation of fine Sm{sub 2}Fe{sub 17}N{sub 3} particles. The milling process with high ball/bottle volume ratio produced Sm{sub 2}Fe{sub 17}N{sub 3} particles with low {sub i}H{sub c} and 4{pi}I{sub r} and {sub i}H{sub c} were attributed to particle aggregates which were formed during the milling. The addition of a surfactant (e.g. polystearic acid) prevented aggregation in the ball milling, and yielded high-performance Sm{sub 2}Fe{sub 17}N{sub 3} (4{pi}I{sub r}: 14.1 kG, {sub i}H{sub c}: 9 kOe, (BH)max: 34 MGOe); cf. (BH)max = 20 MGOe for typical epoxy-bonded magnets.},

  doi          = {10.1109/20.489700},

  url          = {https://www.osti.gov/biblio/186952},
  journal      = {IEEE Transactions on Magnetics},
number       = 6Pt2,

  volume       = 31,

  place        = {United States},

  year         = {Wed Nov 01 00:00:00 EST 1995},

  month        = {Wed Nov 01 00:00:00 EST 1995}

}

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