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- (Nd, Dy)-Fe-B 분말의 소결특성 및 상변화 연구
- 김세훈, 김진우, 김영도
- Sintering Behavior and Phase Analysis of (Nd, Dy)-Fe-B Powder
- Se-Hoon Kim, Jin-Woo Kim, Young-Do Kim
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Journal of Korean Powder Metallurgy Institute 2010;17(2):154-159
DOI: https://doi.org/10.4150/KPMI.2010.17.2.154
1한양대학교 신소재공학과
2한양대학교 신소재공학과
3한양대학교 신소재공학과
1Department of Materials Science and Engineering, Hanyang University
2Department of Materials Science and Engineering, Hanyang University
3Department of Materials Science and Engineering, Hanyang University
2한양대학교 신소재공학과
3한양대학교 신소재공학과
1Department of Materials Science and Engineering, Hanyang University
2Department of Materials Science and Engineering, Hanyang University
3Department of Materials Science and Engineering, Hanyang University
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Abstract
In this study, the sintering behavior of (Nd, Dy)-Fe-B powder which fabricated by strip-casting was investigated with various sintering temperatures and holding times. The relative density over 99% could be obtained by both sintering at 1070°C for 1h and sintering at 970°C for 20h. The grain growth was observed in sintered specimen at 1050°C compared to one at 970°C. The isothermal sintering process below 1000°C led to suppress grain growth showing the improved magnetic properties. The phase transformation of Nd-rich was confirmed by X-ray diffraction pattern.
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