Metal Foam

Basics

• A Metal that has gas pockets and is thus foam in a similar manner to Foamed Polystyrene
• Much Lighter than metal, and exhibits other unique properties
• "Infiltration Method" involves using a salt to form the gaps, and dissolving it once the cast has cooled down
  • Due to not needing a Blowing Agent this seems to be the more Appropriate Technology

External Links

• The Wikipedia Page on Metal Foam
• A 1993 Paper Titled "PM technology in the production of metal foams"
• A 2020 Paper Titled "Molten Metal Infiltration Methods to Process Metal Matrix Syntactic Foams"
• A 2016 Paper Titled "COMPARISON OF CONVENTIONAL OPEN-CELL ALUMINUM FOAM AND ITS ADDITIVELY MANUFACTURED TWIN"
• A 2014 Paper Titled "Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity"
• A 2012 Paper Titled "Porous Metals and Metal Foams Made from Powders"