Ni 첨가량에 따른 중력 주조 Mg-Ni 합금의 수소화 반응 특성의 변화 = Change of Hydriding Properties of Gravity Cast Mg-Ni Alloys with Ni Content

다국어 초록 (Multilingual Abstract)

Magnesium and its alloys have the high potential as hydrogen storage materials because of their highest hydrogen storage capacity, low density and abundant resources. But poor kinetic properties of hydriding and dehydriding and high working temperature have limited their practical applications. In this study, the Mg-Ni binary alloys with different amount of Ni were produced by gravity casting and characterized in order to investigate the relationship between the microstructures and hydriding properties. The maximum hydrogen absorption capacity decreased, but the absorption kinetics increased with Ni content. The difference in the absorption kinetics was resulted from the differences in the sort and shape of primary solid phases and eutectic microstructure.

참고문헌 (Reference)

1 "경량 수소저장재료의 개발 동향" 대한금속학회회보 12 : 597-603, 1999

2 "The Hydrogen Storage Properties and The Mechanism of the Hydriding Process of Some Multi-Component Magnesium-base Hydrogen Storage Alloys" 20 : 141-150, 1995

3 "Synthesis of Nano-structured b.c.c. Mg-Tm-VTm=Ni, Co, Cu) Alloys and Their Hydrogen Solubility"" 356-357 : 456-460, 2003

4 "Moisture Effect on Hydrogen Storage Properties of Nanostructured MgH2-V-Ti Composite" 28 : 983-988, 2003

5 "Mechanically Milled Mg Composites for Hydrogen Storage" 269 : 259-270, 1998

6 "Hydrogen Sorption Properties of an Mg-Ti-V-Fe Nanocomposite Obtained by Mechanical Alloying" 327 : 230-234, 2001

7 "Hydrogen Sorption Kinetics in Partly Oxidized Mg Films" 237 : 74-80, 1996

8 "Hydriding Combustion Synthesis of Hydrogen Storage Alloys of Mg-Ni-Cu System" 10 : 927-932, 2002

9 "Evaluation of Hydrogen Storage Characteristics of Magnesium-Misch Metal Alloys" 359 : 225-229, 2003

10 "Effect of Addition of Mn and Co on the Hydrogen Storage Characteristics of Microcrystalline Mg" 359 : 315-319, 2003

11 "Activity and Capacity of Hydrogen Storage Alloy Mg2NiH4 Produced by Hydriding Combustion Synthesis" 316 : 118-123, 2001