SI
Units
|
C·G·S Units
|
1T=1Wb/m2=1Vs/m2 |
104G
=
10KG
|
1A
/m |
4πx103Oe=0.01257Oe |
1Wb=1Vs=1Tm2 |
108Mx |
1H/m=1Vs/Am |
|
1J=1Ws=1Nm |
=107erg |
1J/M3=1TA/m |
4πx10GOe=125.7GOe |
1N=1kgm/S2=0.1019
Kilogramme force |
105dynes |
Typical Properties Of The Various Magnet Material
Magnet Material |
(BH)max
MGOe |
Hcj
KOe |
Rev Temp Coeff
Br%/℃ |
Max Working Temp
℃ |
Corrosion
Resistance |
SmCo5 |
18-25 |
16-25 |
-0.045 |
200-250 |
Excellent |
Sm2Co17 |
25-32 |
10-32 |
-0.03 |
300-350 |
Excellent |
NdFeB |
28-50 |
10-25 |
-0.12 |
80-200 |
Poor |
FERRITE |
3.0-4.5 |
3.0-4.5 |
-0.19 |
150-250 |
Excellent |
ALNICO |
5.0-10 |
0.6-1.8 |
-0.03 |
450-500 |
Fair |
Magnetization Curves of Various Magnets
|
