1. Metal Foam MEEN 3344 Ci Yang

2. Characteristics  Made from Al, Fe, Cu, Ag, Ti, Alloy  Gas-filled pores  Very high porosity (75-95% void spaces)  Light and stiff (Strength power law density)  Similar coefficient of thermal expansion  Reduced conductivity  High cost, advanced technology aerospace and manufacturing  Open-cell & close-cell metal foams  Manufacturers: ERG Aerospace, Metal Foam Korea, M- Pore, Porvair, Metafoam Cymat Corporation, Alcoa

3. An open-cell aluminum foamAn open-cell brass foam water treatment disk A large-cell closed-cell aluminum foamA small-cell closed-cell aluminum foam

4. Application  Light-weight structures  Biochemical implants  Filters (high-temperature filters in Chem. Ind.)  Heat exchanger  Mechanical damping devices  Sound/energy absorber  Electrodes  Sensors

6. References  Metal foam. www.wikipedia.org accessed on Oct. 15, 2008www.wikipedia.org  http://www.metalfoam.net/ accessed on Oct. 15, 2008 http://www.metalfoam.net/  A Broad Range of Duocel Foam Products. http://www.ergaerospace.com accessed on Oct. 15, 2008 http://www.ergaerospace.com  Metpore Examples http://www.porvairadvancedmaterials.com/Presentation4_fi les/frame.htm accessed on Oct. 15, 2008 http://www.porvairadvancedmaterials.com/Presentation4_fi les/frame.htm