Metal Foam

MEEN 3344

Ci Yang

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

An open-cell aluminum foam An open-cell brass foam water treatment disk

A large-cell closed-cell aluminum foam A small-cell closed-cell aluminum foam

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

References

Metal foam. www.wikipedia.org accessed on Oct. 15, 2008 http://www.metalfoam.net/ accessed on Oct. 15, 2008 A Broad Range of Duocel Foam Products.

http://www.ergaerospace.com accessed on Oct. 15, 2008 Metpore Examples

http://www.porvairadvancedmaterials.com/Presentation4_files/frame.htm accessed on Oct. 15, 2008