Low-temperature crystallization caused by ultrasound in Pd42.5 Ni7.5 Cu30 P20 and Pd40 Ni40 P20 bulk metallic glasses

T. Ichitsubo, E. Matsubara, K. Anazawa, N. Nishiyama, M. Naito, Y. Hirotsu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Crystallization behavior of Pd42.5 Ni7.5 Cu30 P20 and Pd40 Ni40 P20 (number indicate at.%) bulk metallic glasses under ultrasonic (US) vibrations of sub/low-MHz frequencies has been systematically investigated. It was found that, when the glassy sample was subjected to the US vibrations for a long duration, the crystallization occurred even (near) below the glass transition temperature Tg. The microstructural features of the US-accelerated crystalline phases are presented, and the mechanism of the US-accelerated crystallization is briefly discussed in terms of β relaxation.

Original languageEnglish
Pages (from-to)273-277
Number of pages5
JournalMaterials Science and Engineering A
Volume442
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Dec 20

Keywords

  • Acoustic methods
  • Crystallization
  • Metallic glasses
  • Ultrasound
  • β relaxation

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Low-temperature crystallization caused by ultrasound in Pd<sub>42.5</sub> Ni<sub>7.5</sub> Cu<sub>30</sub> P<sub>20</sub> and Pd<sub>40</sub> Ni<sub>40</sub> P<sub>20</sub> bulk metallic glasses'. Together they form a unique fingerprint.

  • Cite this