Title:
MAGNETIC MATERIAL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/164375
Kind Code:
A1
Abstract:
Provided is a new magnetic material with high magnetic stability, as well as a manufacturing method therefor, said magnetic material having a higher saturation magnetization than ferrite-based magnetic materials, and having a higher electrical resistivity than existing metal-based magnetic materials, thus solving problems such as that of eddy current loss. Ti-ferrite nanoparticles obtained through wet synthesis are reduced within hydrogen, and grains are allowed to grow while simultaneously using a phase separation phenomenon due to a disproportionation reaction to produce a magnetic material powder in which an α-(Fe, Ti) phase and a Ti-enriched phase are nano-dispersed. This powder is then sintered to produce a solid magnetic material.
Inventors:
IMAOKA NOBUYOSHI (JP)
OZAKI KIMIHIRO (JP)
OZAKI KIMIHIRO (JP)
Application Number:
PCT/JP2017/012032
Publication Date:
September 28, 2017
Filing Date:
March 24, 2017
Export Citation:
Assignee:
NAT INST ADVANCED IND SCIENCE & TECH (JP)
International Classes:
H01F1/147; B22F1/08; B22F3/00; B22F9/22; C22C14/00; C22C38/00; H01F1/20; H01F1/22; H01F1/33; H01F1/34; B22F1/16
Domestic Patent References:
| WO2016013183A1 | 2016-01-28 | |||
| WO2015020183A1 | 2015-02-12 | |||
| WO2009057742A1 | 2009-05-07 | |||
| WO2003015109A1 | 2003-02-20 |
Foreign References:
| JPH06316748A | 1994-11-15 |
Other References:
R. SATO TURTELLI ET AL.: "Magnetostriction of Fe-Ti Alloys", IEEE TRANSACTIONS ON MAGNETICS, vol. 46, no. 2, February 2010 (2010-02-01), pages 498 - 501, XP011287817
G. HERZER, IEEE TRANSACTIONS ON MAGNETICS, vol. 26, no. 5, 1990, pages 1397 - 1402
Y. ZHANG; P. SHARMA; A. MAKINO, AIP ADVANCES, vol. 3, no. 6, 2013, pages 062118
N. IMAOKA; Y. KOYAMA; T. NAKAO; S. NAKAOKA; T. YAMAGUCHI; E. KAKIMOTO; M. TADA; T. NAKAGAWA; M. ABE, J. APPL. PHYS., vol. 103, no. 7, 2008, pages 07E129
MASAKI ABE, JOURNAL OF THE MAGNETICS SOCIETY OF JAPAN, vol. 22, no. 9, 1998, pages 1225
T. TSUCHIYA; N. YASUDA; S. SASAKI; N. OKINAKA; T. AKIYAMA, INT. J. OF HYDROGEN ENERGY, vol. 38, 2013, pages 6681 - 6686
See also references of EP 3435386A4
G. HERZER, IEEE TRANSACTIONS ON MAGNETICS, vol. 26, no. 5, 1990, pages 1397 - 1402
Y. ZHANG; P. SHARMA; A. MAKINO, AIP ADVANCES, vol. 3, no. 6, 2013, pages 062118
N. IMAOKA; Y. KOYAMA; T. NAKAO; S. NAKAOKA; T. YAMAGUCHI; E. KAKIMOTO; M. TADA; T. NAKAGAWA; M. ABE, J. APPL. PHYS., vol. 103, no. 7, 2008, pages 07E129
MASAKI ABE, JOURNAL OF THE MAGNETICS SOCIETY OF JAPAN, vol. 22, no. 9, 1998, pages 1225
T. TSUCHIYA; N. YASUDA; S. SASAKI; N. OKINAKA; T. AKIYAMA, INT. J. OF HYDROGEN ENERGY, vol. 38, 2013, pages 6681 - 6686
See also references of EP 3435386A4
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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