HDDR工艺是一种非常有效的生产各向异性NdFeB磁粉的技术手段HDDR过程包括吸氢－歧化－脱氢－再复合hydrogenation –disproportionation – desorption – recombination, 简称HDDR四个阶段HDDR过程的本质在于稀土金属间化合物吸氢并歧化分解再在随后的强制脱氢过程中歧化产物复合成晶粒细小的原化合物相从而实现对材料晶粒的细化平均晶粒尺寸为300nm并产生了沿主相C轴方向的晶体结构从而制备出具有优异磁性能和磁各向异性的磁粉
d-HDDR 再结合
HDDR HardDiskDriver 硬盘驱动器
HDDR NdFeB HDDR钕铁硼
vacuum-HDDR 真空HDDR
HDDR method 氢化
HDDR process HDDR工艺
HDDR High Density Digital Recording 高密度数字记录
HDDR Head-Down Display Radar 下视雷达
HDDR phase transformation HDDR相变
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。
Alloys after HDDR treatment showed better magnetic properties because the exchange coupling effect between the soft and hard magnetic phase was induced by HDDR.
经过HDDR处理后的合金性能好于未经过HDDR处理的合金，经过HDDR处理后产生了软硬磁间的交换耦合作用。
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