TEMPERATURE COMPENSATED SAMARIUM COBALT MAGNETS

THE ORIGINAL DEVELOPERS OF TEMPERATURE COMPENSATED SmCo

In 2009, Electron Energy Corporation (EEC) successfully developed a new grade of zero reversible temperature coefficient (RTC) magnets with a maximum energy product (BHmax) of 18 MGOe—the highest ever achieved at the time.

This material grade, known as temperature compensated samarium cobalt (SmCo TC), was created to address the extremely low RTC of residual induction (Br) required for applications such as traveling wave tubes (TWTs), gyroscopes, and accelerometers. EEC’s SmCo TC magnets are best-known for providing constant magnetic field strength across a range of temperatures.

EEC SmCo TC products are used in a variety of applications including:

  • Gyroscopes
  • Accelerometers
  • Inertial Guidance Systems
  • Travelling Wave Tubes (TWTs)
  • High Precision Weighing Scales
Temperature Compensated Samarium Cobalt Rings

Reversible Temperature Coefficient

TempComp-SmCo-Reversible-Temperature-Coefficient-Chart
  • Constant magnetic field strength across a wide temperature range
  • Highest corrosion resistance of any rare earth magnet material
  • Reversible temperature coefficient (RTC) of residual induction (Br) of nearly zero
  • High magnetization resistance (greatest of any rare earth magnet)

EEC Temp. Compensated SmCo 

TempComp-SmCo-Grades-Chart
  • EEC 2:17-TC22 (RTC: -0.030)
  • EEC 2:17-TC16 (RTC: -0.001)
  • EEC 2:17-TC 17 (RTC: -0.001)
  • EEC 2:17-TC5 (RTC: -0.008)
  • EEC 26-TC4 (RTC: 0.012)

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