Phason strains on growth, stability and structure of icosahedral phases

An Pang Tsai; Akihsia Inoue; Tsuyoshi Masumoto

doi:10.1016/S0960-8974(97)00016-8

Phason strains on growth, stability and structure of icosahedral phases

An Pang Tsai, Akihsia Inoue, Tsuyoshi Masumoto

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

8 Citations (Scopus)

Abstract

Growth, stability and structure of icosahedral (i-) phases have been studied by electron diffraction and X-ray diffraction in relation with the phason strains. Three alloy systems; AlPdCr, AlPdMn and AlCuV were chosen in this study. An i-Al₇₂Pd₂₅Cr₃ grain has been analysed to have a phason matrix toward to a tetragonal or orthorhombic structure. Stability of the i-phases correlated with the phason relaxation was discussed in Al-Pd-Mn system. A quenched i-Al₇₄Pd₁₇Mn₉ close to but containing significant phason strains, revealed that the phason relaxation induced by precipitation of crystalline phases upon annealing. Phason disorder dominated by the chemical composition was evidenced in a composition study in Al-Pd-Mn system. A high density random phasons characterized the icosahedral glass phase was observed in AlCuV alloys.

Original language	English
Pages (from-to)	221-236
Number of pages	16
Journal	Progress in Crystal Growth and Characterization of Materials
Volume	34
Issue number	1-4
DOIs	https://doi.org/10.1016/S0960-8974(97)00016-8
Publication status	Published - 1997

Keywords

Icosahedral glass
Phason disorder
Relaxation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1016/S0960-8974(97)00016-8

Cite this

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T1 - Phason strains on growth, stability and structure of icosahedral phases

AU - Tsai, An Pang

AU - Inoue, Akihsia

AU - Masumoto, Tsuyoshi

PY - 1997

Y1 - 1997

N2 - Growth, stability and structure of icosahedral (i-) phases have been studied by electron diffraction and X-ray diffraction in relation with the phason strains. Three alloy systems; AlPdCr, AlPdMn and AlCuV were chosen in this study. An i-Al72Pd25Cr3 grain has been analysed to have a phason matrix toward to a tetragonal or orthorhombic structure. Stability of the i-phases correlated with the phason relaxation was discussed in Al-Pd-Mn system. A quenched i-Al74Pd17Mn9 close to but containing significant phason strains, revealed that the phason relaxation induced by precipitation of crystalline phases upon annealing. Phason disorder dominated by the chemical composition was evidenced in a composition study in Al-Pd-Mn system. A high density random phasons characterized the icosahedral glass phase was observed in AlCuV alloys.

AB - Growth, stability and structure of icosahedral (i-) phases have been studied by electron diffraction and X-ray diffraction in relation with the phason strains. Three alloy systems; AlPdCr, AlPdMn and AlCuV were chosen in this study. An i-Al72Pd25Cr3 grain has been analysed to have a phason matrix toward to a tetragonal or orthorhombic structure. Stability of the i-phases correlated with the phason relaxation was discussed in Al-Pd-Mn system. A quenched i-Al74Pd17Mn9 close to but containing significant phason strains, revealed that the phason relaxation induced by precipitation of crystalline phases upon annealing. Phason disorder dominated by the chemical composition was evidenced in a composition study in Al-Pd-Mn system. A high density random phasons characterized the icosahedral glass phase was observed in AlCuV alloys.

KW - Icosahedral glass

KW - Phason disorder

KW - Relaxation

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ER -

Phason strains on growth, stability and structure of icosahedral phases

Abstract

Keywords

ASJC Scopus subject areas

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