Supplementary information
Coercivity enhancement of (Nd,Ce)-Fe-B sintered magnets by doping Nd-Fe additives
K. Chen1,2, S. Guo1,2, X.D. Fan1,3 , G.F. Ding1,2, J.H. Di1,2, R.J.Chen1,2, D. Lee1,2 and A.R. Yan1,2
1
Key Lab of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and
Engineering,
Chinese Academy of Sciences, Ningbo 315201, P. R. China
2
University of Chinese Academy of Sciences, Beijing 100049, P.R. China
3
Xi'an University of Technology, Xi’an 710048, China
E-mail: [email protected] , [email protected]
Figure.S1 BSE-SEM images of B and BN3 magnets
Table S1
EDS results of selected regions marked in Figure.S1
Sample
B
BN3
position
Element amount/wt.%
Phase
Nd
Ce
Fe
Al
O
+1
18.70
10.01
71.29
/
/
Main phase
+2
19.06
10.50
70.12
0.32
0.32
Main phase
+3
18.06
35.21
44.78
/
/
REFe2(Ce-rich)
+4
+1
15.48
18.69
31.70
9.74
52.82
71.22
/
0.35
/
/
REFe2(Ce-rich)
Main phase
+2
18.57
10.18
71.25
0.36
/
Main phase
+3
61.93
20.88
3.01
/
14.18
RE-Fe(Nd-rich)
+4
51.43
16.45
21.22
/
10.90
RE-Fe(Nd-rich)