Title:
SINTERED R-TM-B MAGNET
Document Type and Number:
WIPO Patent Application WO/2016/158552
Kind Code:
A1
Abstract:
A sintered R-TM-B magnet which comprises 24.5-34.5 mass% R (R is at least one element selected from among rare-earth elements including Y), 0.85-1.15 mass% B, less than 0.1 mass% Co, 0.07-0.5 mass% Ga, 0-0.4 mass% Cu, unavoidable impurities, and Fe as the remainder, characterized in that the contents of Ga and Cu, on an X-Y plane where the Ga amount (mass%) and the Cu amount (mass%) are plotted respectively as X-axis and Y-axis, are in a pentagonal region defined by points A (0.5, 0.0), B (0.5, 0.4), C (0.07, 0.4), D (0.07, 0.1), and E (0.2, 0.0) as the vertexes.
Inventors:
YAMAMICHI DAISUKE (JP)
KAMACHI MASANAO (JP)
ISHII RINTARO (JP)
KATOU TAKAHIRO (JP)
KAMACHI MASANAO (JP)
ISHII RINTARO (JP)
KATOU TAKAHIRO (JP)
Application Number:
PCT/JP2016/058917
Publication Date:
October 06, 2016
Filing Date:
March 22, 2016
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
H01F1/057; B22F3/00; C22C33/02; C22C38/00; H01F1/08; H01F7/02
Domestic Patent References:
| WO2009150843A1 | 2009-12-17 |
Foreign References:
| JP2009135393A | 2009-06-18 | |||
| JP2007305878A | 2007-11-22 |
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
Kitsuma Takaishi (JP)
Kitsuma Takaishi (JP)
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