Structure of UAl4 prepared by solid state reaction

V. Y. Zenou; G. Kimmel; C. Cotler; M. Aizenshtein

doi:10.1016/S0925-8388(01)01675-9

Structure of UAl₄ prepared by solid state reaction

V. Y. Zenou
, G. Kimmel
, C. Cotler
, M. Aizenshtein

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

16 Scopus citations

Abstract

Randomly oriented polycrystalline UAl₄ was obtained by arc melting of Al-66.7wt.%U alloy followed by a short-time solid state reaction. X-ray powder diffractometer (XRPD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and density measurements were used in order to determine the exact deviation of stoichiometry in the UAl₄ structure. Machine ball-milled powder samples were used in order to obtain high quality XRPD data, which could be refined by Rietveld method. It was confirmed that only ∼90% of the uranium sites are occupied. There is no evidence for ordering of vacancies in our samples.

Original language	English
Pages (from-to)	189-194
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	329
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(01)01675-9
State	Published - 14 Nov 2001
Externally published	Yes

Keywords

Actinide alloys
Actinide compounds
Crystal structure
SEM
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(01)01675-9

Cite this

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title = "Structure of UAl4 prepared by solid state reaction",

abstract = "Randomly oriented polycrystalline UAl4 was obtained by arc melting of Al-66.7wt.\%U alloy followed by a short-time solid state reaction. X-ray powder diffractometer (XRPD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and density measurements were used in order to determine the exact deviation of stoichiometry in the UAl4 structure. Machine ball-milled powder samples were used in order to obtain high quality XRPD data, which could be refined by Rietveld method. It was confirmed that only ∼90\% of the uranium sites are occupied. There is no evidence for ordering of vacancies in our samples.",

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T1 - Structure of UAl4 prepared by solid state reaction

AU - Zenou, V. Y.

AU - Kimmel, G.

AU - Cotler, C.

AU - Aizenshtein, M.

PY - 2001/11/14

Y1 - 2001/11/14

N2 - Randomly oriented polycrystalline UAl4 was obtained by arc melting of Al-66.7wt.%U alloy followed by a short-time solid state reaction. X-ray powder diffractometer (XRPD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and density measurements were used in order to determine the exact deviation of stoichiometry in the UAl4 structure. Machine ball-milled powder samples were used in order to obtain high quality XRPD data, which could be refined by Rietveld method. It was confirmed that only ∼90% of the uranium sites are occupied. There is no evidence for ordering of vacancies in our samples.

AB - Randomly oriented polycrystalline UAl4 was obtained by arc melting of Al-66.7wt.%U alloy followed by a short-time solid state reaction. X-ray powder diffractometer (XRPD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and density measurements were used in order to determine the exact deviation of stoichiometry in the UAl4 structure. Machine ball-milled powder samples were used in order to obtain high quality XRPD data, which could be refined by Rietveld method. It was confirmed that only ∼90% of the uranium sites are occupied. There is no evidence for ordering of vacancies in our samples.

KW - Actinide alloys

KW - Actinide compounds

KW - Crystal structure

KW - SEM

KW - X-ray diffraction

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DO - 10.1016/S0925-8388(01)01675-9

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