Density-graded cellular aluminum

Alan H. Brothers*, David C. Dunand

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


Open-cell metallic foams with controlled, continuous density gradients were created from polyurethane foam precursors using an investment casting method. This method, designed to improve mass-efficiency in load-bearing metallic foams and facilitate bonding of foams to dense materials in higher-order structures, is described in detail, and demonstrated through pure aluminum foams with model relative density gradients. Methods for structural characterization, including non-destructive local density mapping, are also illustrated.

Original languageEnglish (US)
Pages (from-to)805-809
Number of pages5
JournalAdvanced Engineering Materials
Issue number9
StatePublished - Sep 2006

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


Dive into the research topics of 'Density-graded cellular aluminum'. Together they form a unique fingerprint.

Cite this