Temperature dependence of the 8-Å superstructure in decagonal Al-Co-Ni

F. Frey; E. Weidner; K. Hradil; M. de Boissieu; A. Letoublon; G. McIntyre; R. Currat; A. P. Tsai

doi:10.1016/S0925-8388(02)00134-2

Temperature dependence of the 8-Å superstructure in decagonal Al-Co-Ni

F. Frey, E. Weidner, K. Hradil, M. de Boissieu, A. Letoublon, G. McIntyre, R. Currat, A. P. Tsai

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

18 Citations (Scopus)

Abstract

Diffuse layers corresponding to an 8 Å superperiod along the 'periodic' axis of decagonal Al-Ni-Co phases were investigated by in situ X-ray and neutron diffraction at temperatures up to 980 °C. The diffuse layers consist of an unstructured diffuse background, diffuse bands, and diffuse maxima which (almost) all vanish above 900 °C, but show a different temperature dependence in detail. A tentative scenario of the related structural ordering process during cooling from high temperature is developed. A 1D-columnar cluster model is compared to the experimental results.

Original language	English
Pages (from-to)	57-64
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	342
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(02)00134-2
Publication status	Published - 2002 Aug 14
Externally published	Yes

Keywords

Decagonal quasicrystal
Diffuse layers
High temperature
Neutron diffraction
Periodic superstructure

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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Cite this

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title = "Temperature dependence of the 8-{\AA} superstructure in decagonal Al-Co-Ni",

abstract = "Diffuse layers corresponding to an 8 {\AA} superperiod along the 'periodic' axis of decagonal Al-Ni-Co phases were investigated by in situ X-ray and neutron diffraction at temperatures up to 980 °C. The diffuse layers consist of an unstructured diffuse background, diffuse bands, and diffuse maxima which (almost) all vanish above 900 °C, but show a different temperature dependence in detail. A tentative scenario of the related structural ordering process during cooling from high temperature is developed. A 1D-columnar cluster model is compared to the experimental results.",

keywords = "Decagonal quasicrystal, Diffuse layers, High temperature, Neutron diffraction, Periodic superstructure",

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year = "2002",

month = aug,

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T1 - Temperature dependence of the 8-Å superstructure in decagonal Al-Co-Ni

AU - Frey, F.

AU - Weidner, E.

AU - Hradil, K.

AU - de Boissieu, M.

AU - Letoublon, A.

AU - McIntyre, G.

AU - Currat, R.

AU - Tsai, A. P.

PY - 2002/8/14

Y1 - 2002/8/14

N2 - Diffuse layers corresponding to an 8 Å superperiod along the 'periodic' axis of decagonal Al-Ni-Co phases were investigated by in situ X-ray and neutron diffraction at temperatures up to 980 °C. The diffuse layers consist of an unstructured diffuse background, diffuse bands, and diffuse maxima which (almost) all vanish above 900 °C, but show a different temperature dependence in detail. A tentative scenario of the related structural ordering process during cooling from high temperature is developed. A 1D-columnar cluster model is compared to the experimental results.

AB - Diffuse layers corresponding to an 8 Å superperiod along the 'periodic' axis of decagonal Al-Ni-Co phases were investigated by in situ X-ray and neutron diffraction at temperatures up to 980 °C. The diffuse layers consist of an unstructured diffuse background, diffuse bands, and diffuse maxima which (almost) all vanish above 900 °C, but show a different temperature dependence in detail. A tentative scenario of the related structural ordering process during cooling from high temperature is developed. A 1D-columnar cluster model is compared to the experimental results.

KW - Decagonal quasicrystal

KW - Diffuse layers

KW - High temperature

KW - Neutron diffraction

KW - Periodic superstructure

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