Static measurements for α- and β-relaxation below Tg in a Zr55Cu30Ni5Al10 BMG

Osami Haruyama, Hiroyuki Sawada, Kazuhiro Yoshikawa, Tohru Kawamata, Yoshihiko Yokoyama, Kazumasa Sugiyama

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

The static α- and β-relaxation in a Zr55Cu 30Ni5Al10 bulk metallic glass (BMG) was investigated by volume relaxation. The relaxation time τα for α-relaxation was well fitted by Vogel-Fulcher-Tammann (VFT) equation. The manifestation of β-relaxation in a lower temperature region was confirmed by isochronal change in electrical resistance, and its kinetics was examined by isothermal change in volume during relaxation. The kinetics was characterized by a pre-exponential factor of τβ,0=1. 4×10-11 s and an activation energy of Eβ=160 kJ/mol=2 8.0 RTg. The x-ray analysis with a synchrotron radiation revealed that the structural change was different from that of β-relaxation of metallic glasses with the trend of the chemical short range ordering (CSRO) process.

本文言語English
ホスト出版物のタイトルTMS 2013 - 142nd Annual Meeting and Exhibition, Supplemental Proceedings
ホスト出版物のサブタイトルLinking Science and Technology for Global Solutions
ページ273-280
ページ数8
出版ステータスPublished - 2013 4 25
イベント142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013 - San Antonio, TX, United States
継続期間: 2013 3 32013 3 7

出版物シリーズ

名前TMS Annual Meeting

Other

Other142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions, TMS 2013
CountryUnited States
CitySan Antonio, TX
Period13/3/313/3/7

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

フィンガープリント 「Static measurements for α- and β-relaxation below T<sub>g</sub> in a Zr<sub>55</sub>Cu<sub>30</sub>Ni<sub>5</sub>Al<sub>10</sub> BMG」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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