Based on the requirements of the target of golden course, a comprehensive experimental project was designed for the purpose of cultivating innovative practical ability. Sm2Co17 based alloy ingots were prepared by arc melting, nanometer powders (flakes) were prepared by surfactant assisted high-energy ball milling (SABM) after mechanical crushing, and the prepared materials were characterized by X-ray diffractometer, scanning electron microscope, vibrating sample magnetometer and other analytical means. By designing experimental projects with "advanced" and "innovative" content, students' interest in learning is enhanced, their basic experimental skills are improved, and their innovative thinking and scientific research literacy are cultivated.
HAN et al. (Mon,) studied this question.