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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1999.6
- 수록면
- 55 - 59 (5page)
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초록· 키워드
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In an attempt to find an effective production way of the Sm₂Fe_(17)Nx-type material, the Sm₂Fe_(17)-type alloy with chemical composition of Sm 22.7 wt.%, Fe 72.3 wt.%, Nb 5.0 wt.% was subjected to a HD (hydrogen decrepitation) treatment prior to a nitrogenation, and its effect on the formation of the nitride material was investigated. The nitrogenation behaviours of the alloy were investigated using a TPA (thermopiezic analysis), TMA, and DTA under nitrogen gas, and XRD. It has been found that the previous HD treatment significantly facilitated the formation of Sm₂Fe_(17)Nx-type nitride, and this was accounted for by the clean surface and the finer particle size of the powder caused by the HD treatment. It has also been found that the hydrogen atoms existing in the initial HD-treated alloy were removed almost completely during the nitrogenation. The heat output associated with the nitrogenation of the previously HD-treated alloy was found to be significantly smaller than that of the as-cast alloy.
목차
Abstract
1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusions
Acknowledgement
References
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UCI(KEPA) : I410-ECN-0101-2009-428-015127952