Precipitation of icosahedral phase from a supercooled liquid region in Zr65Cu7.5Al7.5Ni10Ag10 metallic glass

J. Saida, M. Matsushita, T. Zhang, A. Inoue, M. W. Chen, T. Sakurai

研究成果: Article査読

82 被引用数 (Scopus)

抄録

The formation of an icosahedral phase from the rapidly quenched Zr65Cu7.5Al7.5Ni10Ag10 metallic glass was confirmed and the kinetics of the precipitation upon isothermal annealing in the supercooled liquid region were examined by differential scanning calorimetry. Based on the kinetic analysis, it is clarified that the precipitation in the supercooled liquid region takes place by an interfacial controlled growth with a nearly steady-state nucleation rate. The Arrhenius plot between effective time lag, τ, of nucleation and isothermal annealing temperature yields a single linear relation, in which the activation energy for nucleation is evaluated to be 366 kJ/mol. It is concluded that the transformation of amorphous to quasicrystal proceeds by a homogeneous nucleation mode, which is different from those of Pd-U-Si and Al-Cu-V quasicrystals arising from an inhomogeneous distribution of quenched-in nuclei.

本文言語English
ページ(範囲)3497-3499
ページ数3
ジャーナルApplied Physics Letters
75
22
DOI
出版ステータスPublished - 1999 11 29
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

フィンガープリント

「Precipitation of icosahedral phase from a supercooled liquid region in Zr<sub>65</sub>Cu<sub>7.5</sub>Al<sub>7.5</sub>Ni<sub>10</sub>Ag<sub>10</sub> metallic glass」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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