Hydrogen permeability of glass-forming Ni-Nb-Zr-Ta crystalline membranes

Hong Seok Chin, Jin Yoo Suh, Kyoung Won Park, Wooyoung Lee, Eric Fleury

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A crystalline form of a glass-forming Ni-Nb-Zr-Ta alloy was studied as a hydrogen permeation membrane working in the temperature range from 573 K to 773 K. The crystalline membrane composed of an Nb-rich phase in an Ni 10Zr7 matrix demonstrated a hydrogen permeation property superior to the membrane of the same chemical composition with an amorphous structure and the values of the hydrogen permeability were found to exceed those of the Pd-based membranes. However, the mechanical stability deteriorated significantly such that all membranes failed during hydrogen permeation. This indicates a larger sensitivity to hydrogen embrittlement in comparison with the same alloy in an amorphous state.

Original languageEnglish
Pages (from-to)541-545
Number of pages5
JournalMetals and Materials International
Volume17
Issue number4
DOIs
Publication statusPublished - 2011 Aug 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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