Fabrication and hydrogen storage property of eutectic Mg-Ni based alloy powder

공정 Mg-Ni계 합금 분말의 제조 및 수소저장 특성

  • Hong, Seong-Hyeon (New Functional Materials Research Division, Korea Institute of Machinery and Materials) ;
  • Bae, Jong-Soo (New Functional Materials Research Division, Korea Institute of Machinery and Materials) ;
  • Yim, Chang-Dong (Advanced Materials Research Division, Korea Institute of Machinery and Materials) ;
  • Na, Young-Sang (Advanced Materials Research Division, Korea Institute of Machinery and Materials) ;
  • Song, Myoung-Youp (Division of Advanced Materials Engineering, Chonbuk National University)
  • 홍성현 (한국기계연구원 신기능재료연구본부) ;
  • 배종수 (한국기계연구원 신기능재료연구본부) ;
  • 임창동 (한국기계연구원 첨단재료연구본부) ;
  • 나영상 (한국기계연구원 첨단재료연구본부) ;
  • 송명엽 (전북대 신소재공학부)
  • Published : 2006.06.15

Abstract

The eutectic Mg-23.5%Ni alloy was casted by melting and solidification. The powders of Mg-23.5%Ni and (Mg-23.5%Ni)-10% iron oxide were prepared by mechanical grinding of casted Mg-Ni alloy and casted Mg-Ni alloy+oxide, respectively. As milling time increases, hydriding and dehydriding rates of Mg-Ni and Mg-Ni-oxide alloy powders increase. The additions of iron oxide to Mg-Ni alloy and Mg-Ni-oxide increase hydriding rates and slightly decrease dehydriding rates.

Keywords

$H_2$-sorption properties of Mg;iron oxide addition;spray drying;reactive mechanical ginding;hydriding and dehydriding rates

References

  1. J. L. Bobet, F.J. Castro, and B. Chevalier, 'Effects of reactive mechanical milling conditions on the physico-chemical properties of $Mg+Cr_{2}O_{3}$ mixtures', J. Alloys and Comp. Vol. 376, Issues 1-2, 2004, pp. 205-210 https://doi.org/10.1016/j.jallcom.2003.09.125
  2. 홍성현, 김병기, '안료용 알루미늄 플레이크 분 말 제조', 한국분말야금학회지, Vol. 10, No. 6, 2003, pp. 415-421
  3. 임창동, 유봉선, 나영상, 배종수, 'Ni 첨가량 에 따른 중력주조 Mg-Ni 합금의 수소화 반웅 특성의 변화', 한국 수소 및 신에너지학회지, Vol. 15, No.3, 2004, pp. 250-256
  4. 박충년, '수소저장합금', 재료마당, Vol. 15, No.7, 2002, pp. 34-41
  5. MyoungYoup Song, Jean-Louis Bobet, and Bemard Darriet, 'Improvement in hydrogen sorption properties of Mg by reactive mechanical grinding with $CrO_{3}$, $Al_{2}O_{3}$ and $CeO_{2}$', J. Alloys and Camp. Vol. 340, Issues 1-2, 2002, pp. 256-262 https://doi.org/10.1016/S0925-8388(01)02021-7
  6. Myoung-Youp Song, Seong-Hyeon Hong, Ik-Hyun Kwon, Sung-Nam Kwon, Chan-Gi Park, and Jong-Soo Bae, Improvement of hydrogen-storage properties of Mg by reactive mechanical grinding with $Fe_{2}O_{3}$, Journal of Alloys and Compounds, Vol. 398, Issues 1-2, 2005, pp. 283-288. https://doi.org/10.1016/j.jallcom.2005.01.051
  7. 송명엽, 이동섭, '반응성분쇄에 의해 CoO를 첨 가한 Mg의 수소저장특성', 한국 수소 및 신에너지학회, Vol. 14, No.4, 2003, pp. 321-326
  8. Chang Dong Yim, Yong-Min Moon, Bong Sun You, Young Sang Na, and Jong 00 Bae, 'Microstructural change of gravity cast Mg-Ni alloys with Ni contents', Metals and Materials International, Vol. 10, No. 6, 2004, pp. 605-608 https://doi.org/10.1007/BF03027424