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User:Chaiken
Material
Coercivity
Permalloy
, Ni
81
Fe
19
0.5-1
Co
20
Ni
150
Ni
1-x
Zn
x
FeO
3
, a microwave material
15-200
Alnico, a common refrigerator magnet
1500-2000
CoPtCr disk drive recording media
1700
NdFeB
10,000
SmCo
40,000