Foamed Metal Low Density Core Material for Sandwich Construction Open PDF Document Details Document Type Technical Report Publication Date Sep 01, 1953 Accession Number AD0015741 Entities People Johan Bjorksten John C. Elliott Robert J. Roth Tags DTIC Thesaurus Topics Air Force Alloys Aluminum Aluminum Alloys Construction Foamed Metals Governments Low Density Materials Materials Laboratories Melting Point Metals Mixing Oil Burners Oxides Sandwich Construction United States Government