Shin-Etsu Rare Earth Magnets

• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 

• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 

Thermal coefficient of remanence (Br)

Coefficient when the thermal change of the remanence is approximated with a straight line with the temperature as a variable. The unit is per cent per kelvin [%/K]. The thermal coefficient of remanence generally has a negative value and the smaller the absolute value, the less the change of the remanence with temperature. For SmCo family magnets, the change in remanence with temperature is about ­0.03 to ­0.04 [%/K] and for NdFeB family magnets, about ­0.09 to ­0.11 [%/K], which is smaller change with temperature than for ferrite magnets at ­0.19 [%/K].

• 
• 

• 
• 

Glossary list