Title:
MAGNETIC MATERIAL, PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/058589
Kind Code:
A1
Abstract:
A magnetic material is expressed by a composition formula: (R1 － xZx)aMbTc, and includes a main phase having a ThMn12 crystal structure. In the ThMn12 crystal structure, when an amount of the element Z occupying 2a site is Z2a atomic percent, an amount of the element Z occupying 8i site is Z8i atomic percent, an amount of the element Z occupying 8j site is Z8j atomic percent, and an amount of the element Z occupying 8f site is Z8f atomic percent, Z2a, Z8i, Z8j, and Z8f satisfy (Z8i ＋ Z8j ＋ Z8f) / (Z2a ＋ Z8i ＋ Z8j ＋ Z8f) ＜ 0.1.
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Inventors:
SANADA NAOYUKI (JP)
HAGIWARA MASAYA (JP)
SAKURADA SHINYA (JP)
HAGIWARA MASAYA (JP)
SAKURADA SHINYA (JP)
Application Number:
PCT/JP2018/007931
Publication Date:
March 28, 2019
Filing Date:
March 02, 2018
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H01F1/055
Foreign References:
| EP0386286A1 | 1990-09-12 | |||
| JPS57104202A | 1982-06-29 |
Other References:
CHANG W C ET AL: "Magnetic studies of (Y1-xNdx)(Fe1-yCoy)11.5Mo0.5N alloy powders", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 222, no. 1-2, 1 May 1995 (1995-05-01), pages 87 - 91, XP004066536, ISSN: 0925-8388, DOI: 10.1016/0925-8388(94)04923-8
XIAO Y G ET AL: "Crystal structure and spin reorientation transition of Tb1-xYxFe11Mo compounds; Crystal structure and spin reorientation transition", JOURNAL OF PHYSICS D: APPLIED PHYSICS, INSTITUTE OF PHYSICS PUBLISHING LTD, GB, vol. 39, no. 4, 21 February 2006 (2006-02-21), pages 615 - 620, XP020095039, ISSN: 0022-3727, DOI: 10.1088/0022-3727/39/4/003
BO-PING HU ET AL: "Intrinsic magnetic properties of the iron-rich ThMn12-structure alloys R(Fe11Ti); R=Y, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu", JOURNAL OF PHYSICS: CONDENSED MATTER, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB, vol. 1, no. 4, 30 January 1989 (1989-01-30), pages 755 - 770, XP020057865, ISSN: 0953-8984, DOI: 10.1088/0953-8984/1/4/009
XIAO Y G ET AL: "Crystal structure and spin reorientation transition of Tb1-xYxFe11Mo compounds; Crystal structure and spin reorientation transition", JOURNAL OF PHYSICS D: APPLIED PHYSICS, INSTITUTE OF PHYSICS PUBLISHING LTD, GB, vol. 39, no. 4, 21 February 2006 (2006-02-21), pages 615 - 620, XP020095039, ISSN: 0022-3727, DOI: 10.1088/0022-3727/39/4/003
BO-PING HU ET AL: "Intrinsic magnetic properties of the iron-rich ThMn12-structure alloys R(Fe11Ti); R=Y, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu", JOURNAL OF PHYSICS: CONDENSED MATTER, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB, vol. 1, no. 4, 30 January 1989 (1989-01-30), pages 755 - 770, XP020057865, ISSN: 0953-8984, DOI: 10.1088/0953-8984/1/4/009
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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