目前,国产磁粉的主要缺点是颗粒不均匀、有枝叉、轻敲密度低等。这些缺点严重影响了磁粉的性能。为了改善γ-Fe_2O_3磁粉的性能,我们利用化学方法在制备α-FeOOH 的过程中加入一些掺杂元素和分散剂,在一定程度上提高了磁粉的性能。一、掺杂金属元素改善γ-Fe_2O_3的性能表1和图1是掺杂不同浓度 Zn 元素时所测得的磁粉的磁性能,表明了含 Zn 量与 H_, At present, the main drawback of domestic magnetic particles is uneven particles, branches, tap low density. These shortcomings seriously affect the performance of magnetic powder. In order to improve the performance of γ-Fe_2O_3 magnetic powder, we use chemical methods to add some doping elements and dispersants in the process of preparing α-FeOOH to improve the performance of magnetic powder to a certain extent. First, the doping of metal elements to improve the performance of γ-Fe_2O_3 Table 1 and Figure 1 is doped with different concentrations of Zn measured magnetic properties of magnetic particles, indicating that the amount of Zn and H_,