Relaxation studies at high temperatures of precipitation hardened Sm(Co/sub bal/Fe/sub 0.1/Cu/sub 0.12/Zr/sub 0.04/)/sub 7.5/ magnet

Permanent magnets for high temperature applications are based on Sm(Co,Fe,Cu,Zr) alloys. In this paper explained the relaxation of magnetization as a function of temperature, using magnetic relaxation measurements on precipitation hardened magnet.