Amorphous Zr-based foams with aligned, elongated pores

Marie E. Cox, Suveen N. Mathaudhu, K. Ted Hartwig, David C. Dunand

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Interpenetrating phase composites are created by warm equal channel angular extrusion (ECAE) of blended powders of amorphous Zr58.5Nb 2.8Cu15.6Ni12.8Al10.3 (Vit106a) and a crystalline ductile metal (Cu, Ni, or W). Subsequent dissolution of the continuous metallic phase results in amorphous Vit106a foams with ̃40 pct aligned, elongated pores. The extent of Vit106a powder densification in the composites improves with the strength of the crystalline metallic powder, from low for Cu to high for W, with a concomitant improvement in foam compressive strength, ductility, and energy absorption.

Original languageEnglish (US)
Pages (from-to)1706-1713
Number of pages8
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Issue number7
StatePublished - Jul 2010

ASJC Scopus subject areas

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


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