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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1999.6
- 수록면
- 46 - 51 (6page)
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초록· 키워드
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A solid-HDDR characteristics of the Nd-Fe-B-type alloys and magnetic properties of the solid-HDDR treated materials have been investigated using three types of alloys; Nd_(15)Fe_(77)B_8 (alloy A), Nd_(16)Fe_(75.9)B_8Zr_(0.1) (alloy B), and Nd_(12.6)Fe_(68.7)Co_(11.6)B_8Ga_(1.0)Zr_(0.1) (alloy C). It has been found that the four-components alloy B and six-components alloy C have showed higher hydrogenation temperatures than the ternary alloy A. The alloys A and B appeared to absorb more hydrogen gas more rapidly as well compared to the alloy C. The disproportionation temperature of hydrogenated materials was exhibited no significant difference among the alloys. The thermal stability of the hydrided materials of the three types of alloys was found to become more stable in order of number of components. The disproportionation and the recombination kinetics were significantly sluggish in the solid-HDDR manner with respect to the conventional manner. some degree of anisotropic nature was found to exist in the ingot and this anisotropic nature was retained even after the solid-HDDR treatment. It was suggested the solid-HDDR treatment may possibly be used for a preparation of an isotropic or anisotropic Nd-Fe-B-type cast magnets.
목차
Abstract
1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusions
Acknowledgement
References
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UCI(KEPA) : I410-ECN-0101-2009-428-015127932