Vacuum thermal dealloying of magnesium-based alloys for fabrication of nanoporous refractory metals

Maria Kosmidou, Michael J. Detisch, Tyler L. Maxwell, T. John Balk

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A specialized dealloying technique called thermal dealloying was developed over 10 years ago for certain biomedical materials. This method is not widely used for synthesizing nanoporous metals. However, it offers advantages over conventional dealloying processes for fabrication of nanoporous structures, and is highly suitable for refractory metals that may be susceptible to oxidation during chemical/electrochemical dealloying and liquid metal dealloying. In this study, nanoporous structures were successfully fabricated from magnesium-based precursor alloys via sublimation of magnesium at elevated temperature under vacuum conditions. Different refractory metal diffusion rates affect the resulting density and amount of retained magnesium in each nanoporous material.

Original languageEnglish
Pages (from-to)144-149
Number of pages6
JournalMRS Communications
Volume9
Issue number1
DOIs
StatePublished - Mar 1 2019

Bibliographical note

Publisher Copyright:
© 2019 Materials Research Society.

ASJC Scopus subject areas

  • General Materials Science

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