Electronic rule for formation of glassy alloys

Mikio Fukuhara; Masae Takahashi; Yoshiyuki Kawazoe; Akihisa Inoue

doi:10.1063/1.2472565

Electronic rule for formation of glassy alloys

Mikio Fukuhara, Masae Takahashi, Yoshiyuki Kawazoe, Akihisa Inoue

Tohoku University

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

21 Citations (Scopus)

Abstract

The glass transition temperature Tg of 100 kinds of glassy alloys can be expressed as a function of their valence electron concentration (VEC): Tg =131VEC+57 for metal/metal bonding type and Tg =-236VEC+2375 for metal/metalloid bonding one. The electron valences of the constituent elements of the glassy alloys are somewhat larger than those predicted by crystalline metallic valence bond theory, suggesting a valence electron contribution associated with spd or spf hybridization for glass formation. Ab initio molecular orbital calculations of the optimized structures for Mg monoanion clusters warranted application of the valence electron rule.

Original language	English
Article number	073114
Journal	Applied Physics Letters
Volume	90
Issue number	7
DOIs	https://doi.org/10.1063/1.2472565
Publication status	Published - 2007

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abstract = "The glass transition temperature Tg of 100 kinds of glassy alloys can be expressed as a function of their valence electron concentration (VEC): Tg =131VEC+57 for metal/metal bonding type and Tg =-236VEC+2375 for metal/metalloid bonding one. The electron valences of the constituent elements of the glassy alloys are somewhat larger than those predicted by crystalline metallic valence bond theory, suggesting a valence electron contribution associated with spd or spf hybridization for glass formation. Ab initio molecular orbital calculations of the optimized structures for Mg monoanion clusters warranted application of the valence electron rule.",

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AU - Fukuhara, Mikio

AU - Takahashi, Masae

AU - Kawazoe, Yoshiyuki

AU - Inoue, Akihisa

N1 - Funding Information: This work was supported by a Grant-In-Aid for Science Research in the priority area of “Research and Development Project on Advanced Metallic Glasses, Inorganic Materials, and Joining Technology” from the Ministry of Education, Science, Sports, and Culture of Japan.

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AB - The glass transition temperature Tg of 100 kinds of glassy alloys can be expressed as a function of their valence electron concentration (VEC): Tg =131VEC+57 for metal/metal bonding type and Tg =-236VEC+2375 for metal/metalloid bonding one. The electron valences of the constituent elements of the glassy alloys are somewhat larger than those predicted by crystalline metallic valence bond theory, suggesting a valence electron contribution associated with spd or spf hybridization for glass formation. Ab initio molecular orbital calculations of the optimized structures for Mg monoanion clusters warranted application of the valence electron rule.

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Electronic rule for formation of glassy alloys

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