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一、引言磁粉是磁记录材料的主要组成部分。对于针形磁粉,不仅应该具有适当的比饱和磁化强度和矫顽力,而且具有良好的分散性和填充性。磁粉的分散性和填充性明显地表现在磁粉的堆积状态上。
I. INTRODUCTION Magnetic powder is the main component of magnetic recording materials. Needle-shaped magnetic powder, not only should have the appropriate ratio of saturation magnetization and coercivity, but also has good dispersion and filling. Dispersibility and filling of magnetic particles are clearly manifested in the accumulation of magnetic particles on the state.