Hexagonal superstructures in the Zn-Mg-rare-earth alloys

E. Abe; H. Takakura; A. Singh; A. P. Tsai

doi:10.1016/S0925-8388(98)00814-7

Hexagonal superstructures in the Zn-Mg-rare-earth alloys

E. Abe, H. Takakura, A. Singh, A. P. Tsai

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

47 Citations (Scopus)

Abstract

We show that three types of hexagonal Zn-Mg-rare-earth (RE) ternary compound are formed in the vicinity of Zn₆Mg₃RE₁. An electron diffraction study revealed that these phases are related with a lattice parameters by a ratio 3:5:7 but with approximately the same c parameters. A preliminary structural model for the phase with medium a parameter has been proposed by high-resolution electron microscopy, based on the structures of the other two phases recently determined. It is shown that the two-dimensional hexagonal superstructures can be described by two kinds of Zn-Mg clusters A and B, linked by RE atoms.

Original language	English
Pages (from-to)	169-172
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	283
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(98)00814-7
Publication status	Published - 1999
Externally published	Yes

Keywords

Atomic cluster
HREM
Intermetallic phases
Superstructure
Zn-Mg-rare-earth alloys

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(98)00814-7

Cite this

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title = "Hexagonal superstructures in the Zn-Mg-rare-earth alloys",

abstract = "We show that three types of hexagonal Zn-Mg-rare-earth (RE) ternary compound are formed in the vicinity of Zn6Mg3RE1. An electron diffraction study revealed that these phases are related with a lattice parameters by a ratio 3:5:7 but with approximately the same c parameters. A preliminary structural model for the phase with medium a parameter has been proposed by high-resolution electron microscopy, based on the structures of the other two phases recently determined. It is shown that the two-dimensional hexagonal superstructures can be described by two kinds of Zn-Mg clusters A and B, linked by RE atoms.",

keywords = "Atomic cluster, HREM, Intermetallic phases, Superstructure, Zn-Mg-rare-earth alloys",

author = "E. Abe and H. Takakura and A. Singh and Tsai, {A. P.}",

note = "Funding Information: The authors thank to Professor Sugiyama, Dr Ohsuna and Professor Hiraga for informing us the atomic cordinates of the Zn–Mg–Sm hexagonal phase (a=3.356, c=0.887 nm) prior to the publication. This work has been supported by Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation.",

year = "1999",

doi = "10.1016/S0925-8388(98)00814-7",

language = "English",

volume = "283",

pages = "169--172",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "1-2",

}

TY - JOUR

T1 - Hexagonal superstructures in the Zn-Mg-rare-earth alloys

AU - Abe, E.

AU - Takakura, H.

AU - Singh, A.

AU - Tsai, A. P.

N1 - Funding Information: The authors thank to Professor Sugiyama, Dr Ohsuna and Professor Hiraga for informing us the atomic cordinates of the Zn–Mg–Sm hexagonal phase (a=3.356, c=0.887 nm) prior to the publication. This work has been supported by Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation.

PY - 1999

Y1 - 1999

N2 - We show that three types of hexagonal Zn-Mg-rare-earth (RE) ternary compound are formed in the vicinity of Zn6Mg3RE1. An electron diffraction study revealed that these phases are related with a lattice parameters by a ratio 3:5:7 but with approximately the same c parameters. A preliminary structural model for the phase with medium a parameter has been proposed by high-resolution electron microscopy, based on the structures of the other two phases recently determined. It is shown that the two-dimensional hexagonal superstructures can be described by two kinds of Zn-Mg clusters A and B, linked by RE atoms.

AB - We show that three types of hexagonal Zn-Mg-rare-earth (RE) ternary compound are formed in the vicinity of Zn6Mg3RE1. An electron diffraction study revealed that these phases are related with a lattice parameters by a ratio 3:5:7 but with approximately the same c parameters. A preliminary structural model for the phase with medium a parameter has been proposed by high-resolution electron microscopy, based on the structures of the other two phases recently determined. It is shown that the two-dimensional hexagonal superstructures can be described by two kinds of Zn-Mg clusters A and B, linked by RE atoms.

KW - Atomic cluster

KW - HREM

KW - Intermetallic phases

KW - Superstructure

KW - Zn-Mg-rare-earth alloys

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U2 - 10.1016/S0925-8388(98)00814-7

DO - 10.1016/S0925-8388(98)00814-7

M3 - Article

AN - SCOPUS:0033078646

VL - 283

SP - 169

EP - 172

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 1-2

ER -

Hexagonal superstructures in the Zn-Mg-rare-earth alloys

Abstract

Keywords

ASJC Scopus subject areas

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