The main phase grain size of the magnet powder produced by modified HDDR process was significantly smaller than those produced by conventional HDDR process.
由改进HDDR工艺制得磁粉主相晶粒尺寸明显小于由传统HDDR工艺制得磁粉主相晶粒尺寸。
2
Alloys after HDDR treatment showed better magnetic properties because the exchange coupling effect between the soft and hard magnetic phase was induced by HDDR.