Preparation and hydrogen storage properties of Mg-Ni-B BCC alloys

Huaiyu Shao, Kohta Asano, Hirotoshi Enoki, Etsuo Akiba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Mg-Ni-B system alloys were prepared by the mechanical alloying (MA) method. Body centered cubic (BCC) structure alloys are obtained in some of the Mg-Ni-B compositions after the starting mixtures of raw elements were ball milled for 200 h. Mg50Ni45B5 and Mg48Ni 48B4 alloys after ball milling are with single BCC structure, which is confirmed by electron diffraction patterns. From the results of X-ray diffraction and transmission electron microscope, the crystallite size of the alloys is calculated into nanometer scale. Mg50Ni 45B5 and Mg48Ni48B4 BCC alloys can absorb hydrogen at 373 K with higher rate than Mg50Ni 50 alloy prepared in the same conditions. And these two samples can reach a hydrogen absorption capacity of 1.94 and 1.93 mass%, respectively at 373 K without any activation process.

Original languageEnglish
Title of host publicationSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Pages1625-1628
Number of pages4
EditionPART 2
Publication statusPublished - Dec 1 2007
Event6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
Duration: Nov 5 2007Nov 9 2007

Publication series

NameMaterials Science Forum
NumberPART 2
Volume561-565
ISSN (Print)0255-5476

Other

Other6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
CountryKorea, Republic of
CityJeju
Period11/5/0711/9/07

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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