Effects of Sintering Time on High-Temperature Magnetic Properties and Microstructure of Sintered Sm(Co0.79Fe0.09Cu0.09Zr0.03)7.68 Magnet

The effects of different sintering time on the microstructure and high-temperature magnetic properties of Sm(Co0.79Fe0.09Cu0.09Zr0.03)7.68 magnets were studied. As the sintering time increased from 0.5 to 2 h, the room temperature coercivity increased from 30.50 to 32.25 kOe, while the coercivity at 823 K decreased from 5.20 to 4.69 kOe. The microstructure and element distribution were analyzed by...