【摘要】 本文介绍了为制备均匀分布的不同形状γ-Fe2O3磁粉在方法上的改进和为提高其磁性能而进行的改性;以及近年来γ-Fe2O3超微粉及其复合粉体在制备方法上的新进展和优良性能;并对改性和包覆机理作了简要介绍。更多还原

【Abstract】 The present paper reviewed the preparations of different shapes of γ-Fe₂O₃ and its modifications to improve the magnetic properties.The preparation methods of γ-Fe₂O₃ ultrafine powders and its composites which have excellent properties in recent years were also summarized.The mechanisms of modification and coating were briefly introduced.更多还原