Magnetic properties of Pr-Fe-B sintered magnets produced from hydride powder and from partially and totally desorbed hydride powder

被引：0

作者：

Faria, RN ^{[1
]}

Williams, AJ ^{[1
]}

Abell, JS ^{[1
]}

Harris, IR ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05422970 Sao Paulo, Brazil

来源：

RARE-EARTH MAGNETS AND THEIR APPLICATIONS, VOLS 1 AND 2 - PROCEEDINGS OF THE 14TH INTERNATIONAL WORKSHOP | 1996年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of a post-sintering heat treatment on the magnetic properties of Pr-Fe-B based magnets has been studied. For particular processing conditions, annealing the Pr(16)Fe(76)B(8) magnets at 1000 degrees C resulted in an increase in iHc from 14.9 to around 17.5 kOe. The magnetic properties, before and after annealing, of magnets prepared from this standard HD powder were compared with those of samples prepared from partially and totally desorbed HD powder. Sintered magnets prepared from the hydrided powder exhibit a superior intrinsic coercivity compared to that of magnets prepared from the totally desorbed powder. However, the remanence and energy product of the latter are significantly higher. The squareness factor (0.93) has been improved considerably and good overall magnetic properties (Br similar to 11.7 kc, (BH)(max)similar to 35.2 MGOe and iHc similar to 15.2 kOe) have been achieved for the sintered magnet prepared from partially desorbed powder.

引用

页码：A570 / A579

页数：2