Synchrotron X-ray studies of phason and phonon strains in a Co-rich Al-Ni-Co decagonal quasicrystal

Kazuki Yamamoto; Wang Yang; Yutsuki Nishimura; Naoshi Ikeda; Yoshie Matsuo

doi:10.2320/matertrans.45.1255

Synchrotron X-ray studies of phason and phonon strains in a Co-rich Al-Ni-Co decagonal quasicrystal

Kazuki Yamamoto, Wang Yang, Yutsuki Nishimura, Naoshi Ikeda, Yoshie Matsuo

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

5 Citations (Scopus)

Abstract

Peak broadening and peak shifts of Bragg reflections were studied with the synchrotron single-crystal X-ray diffraction method for an Al _72.7Ni _8.5Co _18.8 decagonal quasicrystal classified as the 5f state. From the Q _⊥ and Q _∥ dependences of the full width of half maximum (FWHM) of the Bragg reflections along the longitudinal direction, the coexistence of random phason strains with phonon strains was observed. High-resolution synchrotron X-ray measurements could present quantitative estimations of these strains. The value of the random phason strain component is 0.0054 ∼ τ ^-11. The asymmetrical broadening due to the phonon strain shows that the single crystal may be constructed with two kinds of grains that have A _5D values of 0.6273 and 0.6265 nm.

Original language	English
Pages (from-to)	1255-1260
Number of pages	6
Journal	Materials Transactions
Volume	45
Issue number	4
DOIs	https://doi.org/10.2320/matertrans.45.1255
Publication status	Published - Apr 2004
Externally published	Yes

Keywords

Aluminum nickel cobalt alloy
Decagonal phase
Phason strain
Phonon strain
Quasicrystal
Synchrotron x-ray diffraction

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Synchrotron X-ray studies of phason and phonon strains in a Co-rich Al-Ni-Co decagonal quasicrystal",

abstract = "Peak broadening and peak shifts of Bragg reflections were studied with the synchrotron single-crystal X-ray diffraction method for an Al 72.7Ni 8.5Co 18.8 decagonal quasicrystal classified as the 5f state. From the Q ⊥ and Q ∥ dependences of the full width of half maximum (FWHM) of the Bragg reflections along the longitudinal direction, the coexistence of random phason strains with phonon strains was observed. High-resolution synchrotron X-ray measurements could present quantitative estimations of these strains. The value of the random phason strain component is 0.0054 ∼ τ -11. The asymmetrical broadening due to the phonon strain shows that the single crystal may be constructed with two kinds of grains that have A 5D values of 0.6273 and 0.6265 nm.",

keywords = "Aluminum nickel cobalt alloy, Decagonal phase, Phason strain, Phonon strain, Quasicrystal, Synchrotron x-ray diffraction",

author = "Kazuki Yamamoto and Wang Yang and Yutsuki Nishimura and Naoshi Ikeda and Yoshie Matsuo",

year = "2004",

month = apr,

doi = "10.2320/matertrans.45.1255",

language = "English",

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journal = "Materials Transactions",

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publisher = "Japan Institute of Metals (JIM)",

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TY - JOUR

T1 - Synchrotron X-ray studies of phason and phonon strains in a Co-rich Al-Ni-Co decagonal quasicrystal

AU - Yamamoto, Kazuki

AU - Yang, Wang

AU - Nishimura, Yutsuki

AU - Ikeda, Naoshi

AU - Matsuo, Yoshie

PY - 2004/4

Y1 - 2004/4

N2 - Peak broadening and peak shifts of Bragg reflections were studied with the synchrotron single-crystal X-ray diffraction method for an Al 72.7Ni 8.5Co 18.8 decagonal quasicrystal classified as the 5f state. From the Q ⊥ and Q ∥ dependences of the full width of half maximum (FWHM) of the Bragg reflections along the longitudinal direction, the coexistence of random phason strains with phonon strains was observed. High-resolution synchrotron X-ray measurements could present quantitative estimations of these strains. The value of the random phason strain component is 0.0054 ∼ τ -11. The asymmetrical broadening due to the phonon strain shows that the single crystal may be constructed with two kinds of grains that have A 5D values of 0.6273 and 0.6265 nm.

AB - Peak broadening and peak shifts of Bragg reflections were studied with the synchrotron single-crystal X-ray diffraction method for an Al 72.7Ni 8.5Co 18.8 decagonal quasicrystal classified as the 5f state. From the Q ⊥ and Q ∥ dependences of the full width of half maximum (FWHM) of the Bragg reflections along the longitudinal direction, the coexistence of random phason strains with phonon strains was observed. High-resolution synchrotron X-ray measurements could present quantitative estimations of these strains. The value of the random phason strain component is 0.0054 ∼ τ -11. The asymmetrical broadening due to the phonon strain shows that the single crystal may be constructed with two kinds of grains that have A 5D values of 0.6273 and 0.6265 nm.

KW - Aluminum nickel cobalt alloy

KW - Decagonal phase

KW - Phason strain

KW - Phonon strain

KW - Quasicrystal

KW - Synchrotron x-ray diffraction

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DO - 10.2320/matertrans.45.1255

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EP - 1260

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

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ER -

Synchrotron X-ray studies of phason and phonon strains in a Co-rich Al-Ni-Co decagonal quasicrystal

Abstract

Keywords

ASJC Scopus subject areas

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