Production of bulk glassy alloy foams by high pressure hydrogen

Takeshi Wada, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A Pd-Cu-Ni-P bulk glassy alloy foam was fabricated by water quenching under pressurized hydrogen atmosphere and subsequent annealing above glass transition temperature under vacuum. At the water-quenching stage, a high density of fine bubbles is introduced. At the subsequent annealing stage, hydrogen atoms precipitate from the glassy phase to bubbles and then bubble expansion takes place above glass transition temperature. The fine and uniform structure of the foam seems to result from the formation of a high density of fine bubbles caused by high atmosphere hydrogen pressure.

Original languageEnglish
Pages (from-to)254-260
Number of pages7
JournalMaterials Science and Engineering A
Volume447
Issue number1-2
DOIs
Publication statusPublished - 2007 Feb 25

Keywords

  • Foaming
  • Glassy alloy foam
  • Palladium based alloy
  • Supercooled liquid

ASJC Scopus subject areas

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

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