高性能纺锤形α-Fe金属磁粉的制备

Preparation of Spindleshaped αFe Metal Magnetic Powders with High Properties

由于纺缍形铁黄粒子较松散的特点，通过在不同水热温度下包覆硅、钴或镍，使纺锤形铁黄脱掉大量凝并接触部分的羟基，形成一层α－Ｆｅ２Ｏ３过渡层，粒子得到了有效的密实化，从而制备了高性能的纺锤形金属磁粉。

Because spindleshaped goethite was loose, coating Si, Ni and Co in different hydrothermal temperatures could make it dehydrated and compacted, its magnetic properties could be improved and the spindleshaped αFe metal magnetic powders with high properties were prepared.