Heat of evolution and structural analysis on the non-Newtonian viscous flow of Pd40Ni40P20 glassy alloy

Hidemi Kato, Ei ichiro Matsubara, Akihisa Inoue, Nobuyuki Nishiyama, H. S. Chen

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The evolution of specific heat of a Pd40Ni40P20 glassy alloy subjected to different degrees of non-Newtonian flow condition near the glass transition temperature, Tg, was investigated by a differential scanning calorimetry (DSC) method. Three exothermic relaxation spectrums were observed in temperature dependence of the specific heat. One of the relaxations in T>490K (=Tg-95K) strongly depended on the flow condition, on the other hand, the others did weakly. This relaxation has previously been reported to be due to the long-range disordering between metal and metalloid constituents. The local atomic structure causing the non-Newtonian flow is therefore expected to show modification among metal and metalloid elements. Using a X-ray diffraction method followed radial distribution function analysis, this modification is observed.

本文言語English
ページ(範囲)444-448
ページ数5
ジャーナルMaterials Science and Engineering A
375-377
1-2 SPEC. ISS.
DOI
出版ステータスPublished - 2004 7

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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