Crystal structures and phase stability in pseudobinary CaAl2-xZnx

Karin Söderberg; Magnus Boström; Yoshiki Kubota; Takeshi Nishimatsu; Rainer Niewa; Ulrich Häussermann; Yuri Grin; Osamu Terasaki

doi:10.1016/j.jssc.2006.05.018

Crystal structures and phase stability in pseudobinary CaAl_2-xZn_x

Karin Söderberg, Magnus Boström, Yoshiki Kubota, Takeshi Nishimatsu, Rainer Niewa, Ulrich Häussermann, Yuri Grin, Osamu Terasaki

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

18 Citations (Scopus)

Abstract

Samples in the pseudobinary system CaAl_2-xZn_x (0 ≤ x ≤ 2) were synthesised from the elements. Three different structure types, the C15 and C36 Laves phase structures and the KHg₂ (CeCu₂) structure, were observed. The structures and homogeneity ranges of the underlying phases were investigated by electron microscopy and thermal analysis as well as X-ray powder diffraction. The stability ranges for the different structure types were found to be 0 ≤ x ≤ 0.18, 0.28 ≤ x ≤ 0.68 and 0.93 ≤ x ≤ 2 for the C15, C36 and KHg₂ structure types, respectively.

Original language	English
Pages (from-to)	2690-2697
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	179
Issue number	8
DOIs	https://doi.org/10.1016/j.jssc.2006.05.018
Publication status	Published - 2006 Aug
Externally published	Yes

Keywords

Intermetallic compounds
Laves phases
Pseudobinary systems phase diagrams
Structural stability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jssc.2006.05.018

Cite this

@article{48daeb2ac3bf475db75b5095cc60aea8,

title = "Crystal structures and phase stability in pseudobinary CaAl2-xZnx",

abstract = "Samples in the pseudobinary system CaAl2-xZnx (0 ≤ x ≤ 2) were synthesised from the elements. Three different structure types, the C15 and C36 Laves phase structures and the KHg2 (CeCu2) structure, were observed. The structures and homogeneity ranges of the underlying phases were investigated by electron microscopy and thermal analysis as well as X-ray powder diffraction. The stability ranges for the different structure types were found to be 0 ≤ x ≤ 0.18, 0.28 ≤ x ≤ 0.68 and 0.93 ≤ x ≤ 2 for the C15, C36 and KHg2 structure types, respectively.",

keywords = "Intermetallic compounds, Laves phases, Pseudobinary systems phase diagrams, Structural stability",

author = "Karin S{\"o}derberg and Magnus Bostr{\"o}m and Yoshiki Kubota and Takeshi Nishimatsu and Rainer Niewa and Ulrich H{\"a}ussermann and Yuri Grin and Osamu Terasaki",

note = "Funding Information: O.T. thanks the Swedish Science Council, VR and the Japan Science Technology Corporation, JST for financial support. U.H. acknowledges support from the Carl Trygger foundation. The authors thank T. Yokosawa and Z. Liu for a part of the TEM investigations, Gudrun Auffermann for chemical analyses, Horst Borrmann, Steffen H{\"u}ckmann, and Yurii Prots for XRD measurements. The synchrotron radiation experiments were performed at SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI). The authors thank Dr. K. Kato of JASRI for his kind help in the experiments.",

year = "2006",

month = aug,

doi = "10.1016/j.jssc.2006.05.018",

language = "English",

volume = "179",

pages = "2690--2697",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "8",

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TY - JOUR

T1 - Crystal structures and phase stability in pseudobinary CaAl2-xZnx

AU - Söderberg, Karin

AU - Boström, Magnus

AU - Kubota, Yoshiki

AU - Nishimatsu, Takeshi

AU - Niewa, Rainer

AU - Häussermann, Ulrich

AU - Grin, Yuri

AU - Terasaki, Osamu

N1 - Funding Information: O.T. thanks the Swedish Science Council, VR and the Japan Science Technology Corporation, JST for financial support. U.H. acknowledges support from the Carl Trygger foundation. The authors thank T. Yokosawa and Z. Liu for a part of the TEM investigations, Gudrun Auffermann for chemical analyses, Horst Borrmann, Steffen Hückmann, and Yurii Prots for XRD measurements. The synchrotron radiation experiments were performed at SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI). The authors thank Dr. K. Kato of JASRI for his kind help in the experiments.

PY - 2006/8

Y1 - 2006/8

N2 - Samples in the pseudobinary system CaAl2-xZnx (0 ≤ x ≤ 2) were synthesised from the elements. Three different structure types, the C15 and C36 Laves phase structures and the KHg2 (CeCu2) structure, were observed. The structures and homogeneity ranges of the underlying phases were investigated by electron microscopy and thermal analysis as well as X-ray powder diffraction. The stability ranges for the different structure types were found to be 0 ≤ x ≤ 0.18, 0.28 ≤ x ≤ 0.68 and 0.93 ≤ x ≤ 2 for the C15, C36 and KHg2 structure types, respectively.

AB - Samples in the pseudobinary system CaAl2-xZnx (0 ≤ x ≤ 2) were synthesised from the elements. Three different structure types, the C15 and C36 Laves phase structures and the KHg2 (CeCu2) structure, were observed. The structures and homogeneity ranges of the underlying phases were investigated by electron microscopy and thermal analysis as well as X-ray powder diffraction. The stability ranges for the different structure types were found to be 0 ≤ x ≤ 0.18, 0.28 ≤ x ≤ 0.68 and 0.93 ≤ x ≤ 2 for the C15, C36 and KHg2 structure types, respectively.

KW - Intermetallic compounds

KW - Laves phases

KW - Pseudobinary systems phase diagrams

KW - Structural stability

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