The nanostructure and hydrogenation reaction of Mg50Co 50 BCC alloy prepared by ball-milling

J. Matsuda; H. Shao; Y. Nakamura; E. Akiba

doi:10.1088/0957-4484/20/20/204015

The nanostructure and hydrogenation reaction of Mg₅₀Co ₅₀ BCC alloy prepared by ball-milling

J. Matsuda, H. Shao, Y. Nakamura, E. Akiba

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Mg₅₀Co₅₀ alloy before and after hydrogenation was investigated by means of transmission electron microscopy (TEM). Mg ₅₀Co₅₀ alloy before hydrogenation was found to contain crystals not larger than 5 nm in size. Selected-area electron diffraction patterns (SAEDPs) revealed that these nanocrystals have a body-centered cubic (BCC) structure with a lattice parameter of about 0.3 nm. Distribution of Mg and Co elements in the Mg₅₀Co₅₀ alloy was uniform, indicated by energy dispersive x-ray spectroscopy (EDS) analysis. Crystallization and decomposition occurred in the Mg₅₀Co₅₀ alloy during hydrogenation. A large number of crystals larger than 10 nm were observed in the hydrogenated sample. The SAEDPs showed polycrystalline rings corresponding to the BCC phase and the Co metal phase. The existence of Mg-rich Mg-Co crystals and Co particles was also confirmed by TEM-EDS analysis.

Original language	English
Article number	204015
Journal	Nanotechnology
Volume	20
Issue number	20
DOIs	https://doi.org/10.1088/0957-4484/20/20/204015
Publication status	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/20/20/204015

Cite this

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abstract = "Mg50Co50 alloy before and after hydrogenation was investigated by means of transmission electron microscopy (TEM). Mg 50Co50 alloy before hydrogenation was found to contain crystals not larger than 5 nm in size. Selected-area electron diffraction patterns (SAEDPs) revealed that these nanocrystals have a body-centered cubic (BCC) structure with a lattice parameter of about 0.3 nm. Distribution of Mg and Co elements in the Mg50Co50 alloy was uniform, indicated by energy dispersive x-ray spectroscopy (EDS) analysis. Crystallization and decomposition occurred in the Mg50Co50 alloy during hydrogenation. A large number of crystals larger than 10 nm were observed in the hydrogenated sample. The SAEDPs showed polycrystalline rings corresponding to the BCC phase and the Co metal phase. The existence of Mg-rich Mg-Co crystals and Co particles was also confirmed by TEM-EDS analysis.",

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AU - Matsuda, J.

AU - Shao, H.

AU - Nakamura, Y.

AU - Akiba, E.

PY - 2009

Y1 - 2009

N2 - Mg50Co50 alloy before and after hydrogenation was investigated by means of transmission electron microscopy (TEM). Mg 50Co50 alloy before hydrogenation was found to contain crystals not larger than 5 nm in size. Selected-area electron diffraction patterns (SAEDPs) revealed that these nanocrystals have a body-centered cubic (BCC) structure with a lattice parameter of about 0.3 nm. Distribution of Mg and Co elements in the Mg50Co50 alloy was uniform, indicated by energy dispersive x-ray spectroscopy (EDS) analysis. Crystallization and decomposition occurred in the Mg50Co50 alloy during hydrogenation. A large number of crystals larger than 10 nm were observed in the hydrogenated sample. The SAEDPs showed polycrystalline rings corresponding to the BCC phase and the Co metal phase. The existence of Mg-rich Mg-Co crystals and Co particles was also confirmed by TEM-EDS analysis.

AB - Mg50Co50 alloy before and after hydrogenation was investigated by means of transmission electron microscopy (TEM). Mg 50Co50 alloy before hydrogenation was found to contain crystals not larger than 5 nm in size. Selected-area electron diffraction patterns (SAEDPs) revealed that these nanocrystals have a body-centered cubic (BCC) structure with a lattice parameter of about 0.3 nm. Distribution of Mg and Co elements in the Mg50Co50 alloy was uniform, indicated by energy dispersive x-ray spectroscopy (EDS) analysis. Crystallization and decomposition occurred in the Mg50Co50 alloy during hydrogenation. A large number of crystals larger than 10 nm were observed in the hydrogenated sample. The SAEDPs showed polycrystalline rings corresponding to the BCC phase and the Co metal phase. The existence of Mg-rich Mg-Co crystals and Co particles was also confirmed by TEM-EDS analysis.

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The nanostructure and hydrogenation reaction of Mg₅₀Co ₅₀ BCC alloy prepared by ball-milling

Abstract

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