Hydrogen-storage properties of Mg–10wt.% (Fe2O3, Ni, MnO) alloy prepared by reactive mechanical grinding

2006 ◽  
Vol 416 (1-2) ◽  
pp. 239-244 ◽  
Author(s):  
Myoung-Youp Song ◽  
Daniel R. Mumm ◽  
Sung-Nam Kwon ◽  
Seong-Hyeon Hong ◽  
Jong-Soo Bae
Keyword(s):  
Hydrogen Storage ◽  
Mechanical Grinding ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Enhancement of the Hydrogen–Storage Properties of MgH2 by the Addition of Ni, NaAlH4, Ti, and CNT via Reactive Mechanical Grinding

2015 ◽  
Vol 15 (11) ◽  
pp. 8763-8772 ◽  
Author(s):  
Young Jun Kwak ◽  
Seong Ho Lee ◽  
Byung-Soo Lee ◽  
Hye Ryoung Park ◽  
Myoung Youp Song
Keyword(s):  
Hydrogen Storage ◽  
Mechanical Grinding ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Hydrogen-storage properties of Mg–oxide alloys prepared by reactive mechanical grinding

2006 ◽  
Vol 415 (1-2) ◽  
pp. 266-270 ◽  
Author(s):  
Myoung Youp Song ◽  
IkHyun Kwon ◽  
SungNam Kwon ◽  
ChanGi Park ◽  
Seong-Hyeon Hong ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Mechanical Grinding ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Improvement of hydrogen-storage properties of Mg by reactive mechanical grinding with Fe2O3

2005 ◽  
Vol 396 (1-2) ◽  
pp. 264-268 ◽  
Author(s):  
Ik-Hyun Kwon ◽  
Jean-Louis Bobet ◽  
Jong-Soo Bae ◽  
Myoung-Youp Song
Keyword(s):  
Hydrogen Storage ◽  
Mechanical Grinding ◽  
Hydrogen Storage Properties ◽  
Storage Properties

The effects of mechanical grinding on the hydrogen storage properties of MlNi4.7Al0.3 alloy

1995 ◽  
Vol 231 (1-2) ◽  
pp. 820-823 ◽  
Author(s):  
Bin-Hong Liu ◽  
Zhou-Peng Li ◽  
Chang-Pin Chen ◽  
Wei-Hong Liu ◽  
Qi-Dong Wang
Keyword(s):  
Hydrogen Storage ◽  
Mechanical Grinding ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Role of Annealing for Improving Hydrogen Storage Properties of Ti-Cr-V Alloy

2006 ◽  
Vol 971 ◽  
Author(s):  
Yasuhiro Munekata ◽  
Kota Washio ◽  
Takanori Suda ◽  
Naoyuki Hashimoto ◽  
Somei Ohnuki ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Storage Capacity ◽  
Vacuum Annealing ◽  
Mechanical Grinding ◽  
Hydrogen Storage Alloys ◽  
Hydrogen Storage Properties ◽  
Defect Accumulation ◽  
Cyclic Degradation ◽  
Storage Properties

ABSTRACTOne of impotent materials issues of Ti-Cr-V based hydrogen storage alloys is to improve cyclic degradation of storage capacity, which has been assumed to be the effect of internal stress. We focused on the sub-micron structure of this material, which can be accumulated during cyclic use. We used 24Ti-36Cr-40V alloy for the specimens, after FZ melting. Powered samples were fabricated by mechanical grinding under Ar environment. Vacuum annealing was carried out for reducing residual stress and lattice defects. PCT properties were tested at 293 K under 4.5 MPa. XRD and TEM were carried out for important samples. In the first cycle, the annealing resulted in the increasing of storage capacity, but in the second cycle the improving was disappeared. Comparing microstructures with and without annealing, complex dislocation structures were observed after cyclic hydrogenation. It is notable that dislocation free structure was some time observed in the fine grains of less than 0.1 micron, which suggests the possibility of fine structure without defect accumulation.

Sign in / Sign up

Export Citation Format

Share Document