Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 504, Issue 1, Pages 83-88Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.05.058
Keywords
Nanostructure; Ball milling; Deformation; Hydrogen storage; X-ray diffraction
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Funding
- Hungarian Scientific Research [F67893]
- Bulgarian National Science Fund [DO 02-226/2008]
- Hungarian Academy of Sciences
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Ball-milled nanocrystalline Mg70Ni30 powders were subjected to heavy shear deformation by the process of high-pressure torsion (HPT). X-ray diffraction analysis revealed that HPT results in a deformation-dependent microstructural refinement. Complementary hydrogen sorption kinetic measurements indicate that the maximum absorption capacity is increased by 30-50% after HPT due to the creation of new possible hydrogen absorption sites at the grain boundaries and at lattice defects. (C) 2010 Elsevier B.V. All rights reserved.
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