Metal Foam

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Metal Foam

• MEEN 3344
• Ci Yang

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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

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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
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Application

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

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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.porvairadvancedmateria
  ls.com/Presentation4_files/frame.htm accessed on
  Oct. 15, 2008