Synthesis and hydriding/dehydriding properties of amorphous Mg2Ni1.9M0.1 alloys mechanically alloyed from Mg2Ni0.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) and Ni powder

N. Terashita, M. Takahashi, K. Kobayashi, T. Sasai, Etsuo Akiba

Research output: Contribution to journalConference article

44 Citations (Scopus)

Abstract

Amorphous Mg2Ni1.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) alloys were prepared by mechanical alloying of pseudo-binary Mg2Ni0.9M0.1 intermetallic compounds and Ni powder. The crystal structures, thermal stabilities and hydriding/dehydriding properties of those alloys were characterized by powder X-ray diffraction, thermal analysis and conventional measurement of pressure composition isotherms. In spite of the difference in M element, all specimens formed amorphous structures by mechanical alloying. Owing to the substitution of Ca the amount of desorbed hydrogen increased from 1.8 mass% for M = none to 2.1 mass% for M = Ca by measurement of thermogravimetry. The dehydriding reactions occurred at temperatures below about 400 K in both alloys.

Original languageEnglish
Pages (from-to)541-545
Number of pages5
JournalJournal of Alloys and Compounds
Volume293
DOIs
Publication statusPublished - Dec 20 1999
EventProceedings of the 1998 International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications (MH98) - Hangzhou, China
Duration: Oct 4 1998Oct 9 1998

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Amorphous alloys
Powders
Mechanical alloying
X ray powder diffraction
Thermoanalysis
Intermetallics
Isotherms
Thermogravimetric analysis
Hydrogen
Thermodynamic stability
Substitution reactions
Crystal structure
Chemical analysis
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Synthesis and hydriding/dehydriding properties of amorphous Mg2Ni1.9M0.1 alloys mechanically alloyed from Mg2Ni0.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) and Ni powder. / Terashita, N.; Takahashi, M.; Kobayashi, K.; Sasai, T.; Akiba, Etsuo.

In: Journal of Alloys and Compounds, Vol. 293, 20.12.1999, p. 541-545.

Research output: Contribution to journalConference article

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abstract = "Amorphous Mg2Ni1.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) alloys were prepared by mechanical alloying of pseudo-binary Mg2Ni0.9M0.1 intermetallic compounds and Ni powder. The crystal structures, thermal stabilities and hydriding/dehydriding properties of those alloys were characterized by powder X-ray diffraction, thermal analysis and conventional measurement of pressure composition isotherms. In spite of the difference in M element, all specimens formed amorphous structures by mechanical alloying. Owing to the substitution of Ca the amount of desorbed hydrogen increased from 1.8 mass{\%} for M = none to 2.1 mass{\%} for M = Ca by measurement of thermogravimetry. The dehydriding reactions occurred at temperatures below about 400 K in both alloys.",
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T1 - Synthesis and hydriding/dehydriding properties of amorphous Mg2Ni1.9M0.1 alloys mechanically alloyed from Mg2Ni0.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) and Ni powder

AU - Terashita, N.

AU - Takahashi, M.

AU - Kobayashi, K.

AU - Sasai, T.

AU - Akiba, Etsuo

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N2 - Amorphous Mg2Ni1.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) alloys were prepared by mechanical alloying of pseudo-binary Mg2Ni0.9M0.1 intermetallic compounds and Ni powder. The crystal structures, thermal stabilities and hydriding/dehydriding properties of those alloys were characterized by powder X-ray diffraction, thermal analysis and conventional measurement of pressure composition isotherms. In spite of the difference in M element, all specimens formed amorphous structures by mechanical alloying. Owing to the substitution of Ca the amount of desorbed hydrogen increased from 1.8 mass% for M = none to 2.1 mass% for M = Ca by measurement of thermogravimetry. The dehydriding reactions occurred at temperatures below about 400 K in both alloys.

AB - Amorphous Mg2Ni1.9M0.1 (M = none, Ni, Ca, La, Y, Al, Si, Cu and Mn) alloys were prepared by mechanical alloying of pseudo-binary Mg2Ni0.9M0.1 intermetallic compounds and Ni powder. The crystal structures, thermal stabilities and hydriding/dehydriding properties of those alloys were characterized by powder X-ray diffraction, thermal analysis and conventional measurement of pressure composition isotherms. In spite of the difference in M element, all specimens formed amorphous structures by mechanical alloying. Owing to the substitution of Ca the amount of desorbed hydrogen increased from 1.8 mass% for M = none to 2.1 mass% for M = Ca by measurement of thermogravimetry. The dehydriding reactions occurred at temperatures below about 400 K in both alloys.

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