What’s the difference between Maximum Working Temperature and Curie Temperature

Most of the people will be confused by maximum working temperature and curie temperature, and they are usually seen in lots of tables like that show you the physical properties of a magnetic material. Are they the same thing? Of course, they are different, but what is the difference between them?

Curie point, also called Curie Temperature, the temperature at which certain magnetic materials undergo a sharp change in their magnetic properties.  This temperature is named after the French physicist Pierre Curie, who in 1895 discovered the laws that relate some magnetic properties to change in temperature. • At low temperatures, magnetic dipoles are aligned. Above the curie point, random thermal motions nudge dipoles out of alignment.

The magnet’s maximum working temperature refers to the temperature at which a magnet begins to lose its strength if continue heated. This loss of strength in a given time may only be minimal, less than 5%, when the magnet returns to room temperature. It should be noted that different country has different standard.