Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases

A. Létoublon; I. R. Fisher; T. J. Sato; M. De Boissieu; M. Boudard; S. Agliozzo; L. Mancini; J. Gastaldi; P. C. Canfield; A. I. Goldman; A. P. Tsai

doi:10.1016/S0921-5093(00)01085-6

Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases

A. Létoublon, I. R. Fisher, T. J. Sato, M. De Boissieu, M. Boudard, S. Agliozzo, L. Mancini, J. Gastaldi, P. C. Canfield, A. I. Goldman, A. P. Tsai

IMRAM - Division of Inorganic Material Research

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

15 Citations (Scopus)

Abstract

The structural perfection of eight samples of icosahedral Zn-Mg-R (R = Y, Ho and Tb) single grains has been studied by high resolution X-ray diffraction. Four samples present a systematic peak shift proportional to Q_per characteristic of a linear phason strain. Two other samples present a peak splitting proportional to Q_per. Only two samples had their Bragg peak position corresponding to the ideal one, with a width increasing linearly with Q_per. The perfection of one of these last two samples was investigated by synchrotron monochromatic X-ray topography. It was found to be a microstructure similar to the one exhibited by conventional crystals grown by the same technique (flux-growth).

Original language	English
Pages (from-to)	127-130
Number of pages	4
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	294-296
DOIs	https://doi.org/10.1016/S0921-5093(00)01085-6
Publication status	Published - 2000 Dec 15

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Létoublon, A., Fisher, I. R., Sato, T. J., De Boissieu, M., Boudard, M., Agliozzo, S., Mancini, L., Gastaldi, J., Canfield, P. C., Goldman, A. I., & Tsai, A. P. (2000). Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 294-296, 127-130. https://doi.org/10.1016/S0921-5093(00)01085-6

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title = "Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases",

abstract = "The structural perfection of eight samples of icosahedral Zn-Mg-R (R = Y, Ho and Tb) single grains has been studied by high resolution X-ray diffraction. Four samples present a systematic peak shift proportional to Qper characteristic of a linear phason strain. Two other samples present a peak splitting proportional to Qper. Only two samples had their Bragg peak position corresponding to the ideal one, with a width increasing linearly with Qper. The perfection of one of these last two samples was investigated by synchrotron monochromatic X-ray topography. It was found to be a microstructure similar to the one exhibited by conventional crystals grown by the same technique (flux-growth).",

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doi = "10.1016/S0921-5093(00)01085-6",

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Létoublon, A, Fisher, IR, Sato, TJ, De Boissieu, M, Boudard, M, Agliozzo, S, Mancini, L, Gastaldi, J, Canfield, PC, Goldman, AI & Tsai, AP 2000, 'Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases', Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 294-296, pp. 127-130. https://doi.org/10.1016/S0921-5093(00)01085-6

TY - JOUR

T1 - Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases

AU - Létoublon, A.

AU - Fisher, I. R.

AU - Sato, T. J.

AU - De Boissieu, M.

AU - Boudard, M.

AU - Agliozzo, S.

AU - Mancini, L.

AU - Gastaldi, J.

AU - Canfield, P. C.

AU - Goldman, A. I.

AU - Tsai, A. P.

PY - 2000/12/15

Y1 - 2000/12/15

N2 - The structural perfection of eight samples of icosahedral Zn-Mg-R (R = Y, Ho and Tb) single grains has been studied by high resolution X-ray diffraction. Four samples present a systematic peak shift proportional to Qper characteristic of a linear phason strain. Two other samples present a peak splitting proportional to Qper. Only two samples had their Bragg peak position corresponding to the ideal one, with a width increasing linearly with Qper. The perfection of one of these last two samples was investigated by synchrotron monochromatic X-ray topography. It was found to be a microstructure similar to the one exhibited by conventional crystals grown by the same technique (flux-growth).

AB - The structural perfection of eight samples of icosahedral Zn-Mg-R (R = Y, Ho and Tb) single grains has been studied by high resolution X-ray diffraction. Four samples present a systematic peak shift proportional to Qper characteristic of a linear phason strain. Two other samples present a peak splitting proportional to Qper. Only two samples had their Bragg peak position corresponding to the ideal one, with a width increasing linearly with Qper. The perfection of one of these last two samples was investigated by synchrotron monochromatic X-ray topography. It was found to be a microstructure similar to the one exhibited by conventional crystals grown by the same technique (flux-growth).

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DO - 10.1016/S0921-5093(00)01085-6

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VL - 294-296

SP - 127

EP - 130

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Phason strain and structural perfection in the Zn-Mg-rare-earth icosahedral phases

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