A neutron and X-ray powder diffraction study of B82 related superstructure phases in the Ni-In system

L. Norén; A. K. Larsson; R. L. Withers; H. Rundlöf

doi:10.1016/j.jallcom.2005.10.092

A neutron and X-ray powder diffraction study of B8₂ related superstructure phases in the Ni-In system

L. Norén^*, A. K. Larsson, R. L. Withers, H. Rundlöf

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

The crystal structures of two low temperature B8₂ related superstructure phases in the nickel indium system, Ni₁₃In₉ and Ni_7-δIn_3, have been refined and described in relation to the underlying parent Ni₂In structure-type. They are isostructural to In₁₃Pt₉ and Cu₇In₃, respectively and both accommodate the change in stoichiometry from Ni₂In by forming "same atom" structural motifs, In-centred indium octahedral units in the case of Ni₁₃In₉ and trigonal bipyramidal nickel units in the case of Ni_7-δIn₃. A sample with the nominal composition Ni₅In₃, reported to form part of a solid solution in the binary phase diagram, is not stable at 400 °C and forms a two-phase mix of Ni_7-δIn₃ and Ni₁₃In₉.

Original language	English
Pages (from-to)	247-254
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	424
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2005.10.092
Publication status	Published - 9 Nov 2006

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10.1016/j.jallcom.2005.10.092

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title = "A neutron and X-ray powder diffraction study of B82 related superstructure phases in the Ni-In system",

abstract = "The crystal structures of two low temperature B82 related superstructure phases in the nickel indium system, Ni13In9 and Ni7-δIn3, have been refined and described in relation to the underlying parent Ni2In structure-type. They are isostructural to In13Pt9 and Cu7In3, respectively and both accommodate the change in stoichiometry from Ni2In by forming {"}same atom{"} structural motifs, In-centred indium octahedral units in the case of Ni13In9 and trigonal bipyramidal nickel units in the case of Ni7-δIn3. A sample with the nominal composition Ni5In3, reported to form part of a solid solution in the binary phase diagram, is not stable at 400 °C and forms a two-phase mix of Ni7-δIn3 and Ni13In9.",

keywords = "Intermetallics, Neutron diffraction, Super structures, X-ray diffraction",

author = "L. Nor{\'e}n and Larsson, \{A. K.\} and Withers, \{R. L.\} and H. Rundl{\"o}f",

year = "2006",

month = nov,

day = "9",

doi = "10.1016/j.jallcom.2005.10.092",

language = "English",

volume = "424",

pages = "247--254",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

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TY - JOUR

T1 - A neutron and X-ray powder diffraction study of B82 related superstructure phases in the Ni-In system

AU - Norén, L.

AU - Larsson, A. K.

AU - Withers, R. L.

AU - Rundlöf, H.

PY - 2006/11/9

Y1 - 2006/11/9

N2 - The crystal structures of two low temperature B82 related superstructure phases in the nickel indium system, Ni13In9 and Ni7-δIn3, have been refined and described in relation to the underlying parent Ni2In structure-type. They are isostructural to In13Pt9 and Cu7In3, respectively and both accommodate the change in stoichiometry from Ni2In by forming "same atom" structural motifs, In-centred indium octahedral units in the case of Ni13In9 and trigonal bipyramidal nickel units in the case of Ni7-δIn3. A sample with the nominal composition Ni5In3, reported to form part of a solid solution in the binary phase diagram, is not stable at 400 °C and forms a two-phase mix of Ni7-δIn3 and Ni13In9.

AB - The crystal structures of two low temperature B82 related superstructure phases in the nickel indium system, Ni13In9 and Ni7-δIn3, have been refined and described in relation to the underlying parent Ni2In structure-type. They are isostructural to In13Pt9 and Cu7In3, respectively and both accommodate the change in stoichiometry from Ni2In by forming "same atom" structural motifs, In-centred indium octahedral units in the case of Ni13In9 and trigonal bipyramidal nickel units in the case of Ni7-δIn3. A sample with the nominal composition Ni5In3, reported to form part of a solid solution in the binary phase diagram, is not stable at 400 °C and forms a two-phase mix of Ni7-δIn3 and Ni13In9.

KW - Intermetallics

KW - Neutron diffraction

KW - Super structures

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/33748976232

U2 - 10.1016/j.jallcom.2005.10.092

DO - 10.1016/j.jallcom.2005.10.092

M3 - Article

SN - 0925-8388

VL - 424

SP - 247

EP - 254

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

A neutron and X-ray powder diffraction study of B8₂ related superstructure phases in the Ni-In system

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