Advantages/Benefits:

(1) Can be used in extremely cold conditions.

(2) SmCo can be used at temperatures up to+300 degrees Celsius (572F) and up to+350 degrees Celsius (662F).

(3) High coercivity (Hci) to resist demagnetization.

(4) Above+150 to+180 degrees Celsius (302-356F), samarium cobalt magnets begin to provide higher performance levels than neodymium iron boron magnets.

(5) Samarium cobalt performs well in terms of corrosion resistance.

(6) The extremely low field strength varies with temperature.

Disadvantages/Disadvantages

(1) Under very humid conditions, Sm2Co17 should be coated with a protective coating to minimize any risk of surface corrosion. Sm1Co5 does not rust because it does not contain iron.

(2) The general cost is higher than neodymium iron boron.

(3) All magnets are very brittle, but samarium cobalt magnets are the most brittle.