TY - JOUR
T1 - Electron microscopy and hydriding properties of MgYNi 4 synthesized by mechanical alloying
AU - Kitano, Yasuyuki
AU - Yamada, K.
AU - Miyamoto, M.
AU - Orimo, S.
AU - Fujii, H.
AU - Aono, K.
AU - Tanabe, E.
N1 - Funding Information:
This work is supported by Grant-in-Aid for Scientific Research on Priority Areas(A) ‘New Protium Function in Sub-Nano Lattice Matters’ (Area No. 299) given by the Ministry of Education, Science and Culture, Japan.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2002/1/17
Y1 - 2002/1/17
N2 - The ternary alloy, MgYNi 4, was synthesized by mechanical alloying (MA). Its microscopic structures and hydriding properties were studied. The annealing of the alloy at 773 K was also studied. The alloy consists of nanocrystals of less than 10 nm in diameter. The capacity of the hydrogen atoms in the alloy increases with the increasing size of the nanocrystals. The crystal structure was found to be the C15 type Laves phase structure for the MA-treated alloy, while crystal structure of the as annealed alloy was the ordered C15 type structure which is conventionally called C15b type and is formally called AuBe 5 type structure. The hydrogen capacity in the alloy might have a strong relation to the atomic arrangement of this alloy.
AB - The ternary alloy, MgYNi 4, was synthesized by mechanical alloying (MA). Its microscopic structures and hydriding properties were studied. The annealing of the alloy at 773 K was also studied. The alloy consists of nanocrystals of less than 10 nm in diameter. The capacity of the hydrogen atoms in the alloy increases with the increasing size of the nanocrystals. The crystal structure was found to be the C15 type Laves phase structure for the MA-treated alloy, while crystal structure of the as annealed alloy was the ordered C15 type structure which is conventionally called C15b type and is formally called AuBe 5 type structure. The hydrogen capacity in the alloy might have a strong relation to the atomic arrangement of this alloy.
KW - Crystal structure
KW - Hydrogen storage
KW - Mechanical alloying
KW - Nanostructures
KW - Transmission electron microscopy
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U2 - 10.1016/S0925-8388(01)01531-6
DO - 10.1016/S0925-8388(01)01531-6
M3 - Conference article
AN - SCOPUS:0037122645
VL - 330-332
SP - 292
EP - 295
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
T2 - Proceedings of the International Symposium on Metal-Hydrogen (MH 2000)
Y2 - 1 October 2000 through 6 October 2000
ER -