Static measurements of α- and β-relaxations in Zr-based bulk metallic glasses

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

研究成果: Review article査読

2 被引用数 (Scopus)


The high- and low-temperature relaxations in Zr-based bulk metallic glasses (BMGs) were investigated in terms of volume relaxation. Both relaxations exhibited the decrease of volume during the relaxation, and their behaviors were well described with a stretched exponential relaxation function. The kinetics of high-temperature relaxation was represented by a Vogel-Fulcher-Tammann equation for the relaxation time and by Kohlrausch indices linearly increased with temperature. On the other hand, the kinetics of low-temperature relaxation for respective Zr55Cu30Ni5Al10 BMG was characterized by an Arrhenius type temperature dependence of the relaxation time, and by almost constant value of Kohlrausch index. Consequently, the high- and low-temperature relaxations were regarded as α-relaxation and slow β-relaxation reported for dynamical measurements of the structural relaxation, respectively.

ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
出版ステータスPublished - 2013 5月 1

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学


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