| Nd2Fe14B等合金吸氢性能研究 |
| STUDY ON THE HYDROGEN ABSORPTION CHARACTERISTICS OF Nd2Fe14B AND RELEVENT ALLOYS |
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| 摘要: 早在1969年就发现第一代希土永磁材料SmCo5,每摩尔能够吸2.5摩尔的氢原子。优质吸氢材料LaNi5在1969年以后才发现的。第三代希土永磁材料Nd-Fe-B合金是否亦具有吸氢性能,磁性和吸氢性能之间是否存在一定的联系,是值得人们去关注的问题。本工作从Nd—Fe—B永磁材料中存在的主要物相着手来研究磁性材料的吸氢性能。 |
| 关键词: Nd2Fe14B 吸氯性能 饱和吸氢量 富相 富钕相 |
| 基金项目: 国家自然科学基金 |
| Abstract: The new Nd-Fe-B type permanent magnetic materials contain usually Nd2Fe14B (as the main phase, hard magnetic phase), boron-rich phase.and neodymiun-rich phase as well. In this paper, for each of these phases the maximun hydrogen absorption capacity, dynamic isotherms of hydrogen absorption, as well as hydrogen desorption curves were measured and determined. The obtained dynamic isotherms showed that the hydrogen absorption characteristics of the magnetic materials are predominated by Nd2Fe14B. The maximum hydrogen absorption capacity is 6H / mol Nd2Fe14B. We have also determined the hydrogen absorption characteristics of Nd-Fe-B type permanent magnetic materials prepared by reduction diffusion method. |
| Keywords: Nd2Fe14B hydrogen absorption characteristics maximum hydrogen absorption capacity boron-rich phase meodymfum-rich phase |
| 投稿时间：1988-09-04 |
| 摘要点击次数: 1198 |
| 全文下载次数: 1396 |
| 顾菡珍,邵长城.Nd2Fe14B等合金吸氢性能研究[J].无机化学学报,1990,6(4):454-456. |
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