Temperature dependence of electrical resistivity of Zr-Cu-Al-Ni-Nb bulk metallic glasses below 300 K

D. Okai, A. Nanbu, T. Fukami, T. Yamasaki, T. Zhang, Y. Yokoyama, G. Motoyama, Y. Oda, H. M. Kimura, A. Inoue

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The temperature dependence of electrical resistivitiy of Zr55Cu30-XAl10Ni5NbX (numbers indicate at.% X = 0, 1, 3 and 5) bulk metallic glasses was investigated below 300 K. For the Zr55Cu(30-X)Al10Ni5NbX alloys with X = 1, 3 and 5 consisting of nanocrystals dispersed in the amorphous matrix, the electrical resistivities decreased abruptly below approximately 2.3-2.9 K. For the amorphous Zr55Cu30Al10Ni5 alloy, the electrical resistivitiy increased with decreasing temperature from 300 K up to approximately 2.0 K. The significant decrease of electrical resistivities of nanocrystal-dispersed amorphous alloys was attributable to the zero-resistivity effect of superconducting phases contained in the alloys. The Nb addition to Zr55Cu30Al10Ni5 metallic glass was found to precipitate superconducting phases within the amorphous matrix.

Original languageEnglish
Pages (from-to)548-551
Number of pages4
JournalMaterials Science and Engineering A
Volume449-451
DOIs
Publication statusPublished - 2007 Mar 25

Keywords

  • Bulk metallic glass
  • Electrical resistivity
  • Superconducting phase
  • ZrCu
  • ZrCuAlNiNb
  • ZrNi

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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