{"title":"Magnetic Properties of Sm-Nd-Fe-Co-N Compounds and Their Bonded Magnets","authors":"H. Yamamoto;T. Kumanbara;T. Kojima;K. Tomii","doi":"10.1109/TJMJ.1994.4565984","DOIUrl":null,"url":null,"abstract":"Experiments were carried out to investigate the magnetic and physical properties of (Sm\n<sub>1-x</sub>\nNd\n<sub>x</sub>\n)\n<sub>2</sub>\n(Fe\n<sub>0.8</sub>\nCo\n<sub>0.2</sub>\n)\n<sub>17</sub>\nN\n<sub>y</sub>\n (x=0 to 0.5) in which the value of y is 3. The anisotropy field (H\n<sub>A</sub>\n) in (Sm\n<sub>1-x</sub>\nNd\n<sub>x</sub>\n)\n<sub>2</sub>\n(Fe\n<sub>0.8</sub>\nCo\n<sub>0.2</sub>\n)\n<sub>17</sub>\nN\n<sub>y</sub>\n compounds decreased linearly with increasing x, while the saturation magnetization (J\n<sub>s</sub>\n) increased. It was found that the H\n<sub>A</sub>\n and J\n<sub>s</sub>\n of a (Sm\n<sub>0.9</sub>\nNd\n<sub>0.1</sub>\n)\n<sub>2</sub>\n(Fe\n<sub>0.8</sub>\nCo\n<sub>0.2</sub>\n)\n<sub>17</sub>\nN\n<sub>3.07</sub>\n compound were 10.4 MA/m and 193.6×10\n<sup>-6</sup>\n Wb-m/kg respectively. Anisotropic epoxy-bonded magnets were prepared from (Sm\n<sub>0.9</sub>\nNd\n<sub>0.1</sub>\n)\n<sub>2</sub>\n(Fe\n<sub>0.8</sub>\nCo\n<sub>0.2</sub>\n)\n<sub>17</sub>\nN\n<sub>3.07</sub>\n powder with particle size ranging from 3 to 5 μm by a compression molding process. The magnetic properties of a typical bonded magnet were (BH)\n<sub>max</sub>\n=101.8 kJ/m\n<sup>3</sup>\n, J\n<sub>r</sub>\n=0.89 T, H\n<sub>cJ</sub>\n=394 kA/m, and H\n<sub>cB</sub>\n=314 kA/m. Magnetization jumps were observed on the hysteresis loop of a bonded magnet at 7K.","PeriodicalId":100647,"journal":{"name":"IEEE Translation Journal on Magnetics in Japan","volume":"9 6","pages":"223-230"},"PeriodicalIF":0.0000,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TJMJ.1994.4565984","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Translation Journal on Magnetics in Japan","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/4565984/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Experiments were carried out to investigate the magnetic and physical properties of (Sm
1-x
Nd
x
)
2
(Fe
0.8
Co
0.2
)
17
N
y
(x=0 to 0.5) in which the value of y is 3. The anisotropy field (H
A
) in (Sm
1-x
Nd
x
)
2
(Fe
0.8
Co
0.2
)
17
N
y
compounds decreased linearly with increasing x, while the saturation magnetization (J
s
) increased. It was found that the H
A
and J
s
of a (Sm
0.9
Nd
0.1
)
2
(Fe
0.8
Co
0.2
)
17
N
3.07
compound were 10.4 MA/m and 193.6×10
-6
Wb-m/kg respectively. Anisotropic epoxy-bonded magnets were prepared from (Sm
0.9
Nd
0.1
)
2
(Fe
0.8
Co
0.2
)
17
N
3.07
powder with particle size ranging from 3 to 5 μm by a compression molding process. The magnetic properties of a typical bonded magnet were (BH)
max
=101.8 kJ/m
3
, J
r
=0.89 T, H
cJ
=394 kA/m, and H
cB
=314 kA/m. Magnetization jumps were observed on the hysteresis loop of a bonded magnet at 7K.
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