Improved Mechanical Properties of Nano-nickel Strengthened Open Cell Metal Foams

  • Anne Jung
  • Harald Natter
  • Rolf Hempelmann
  • Stefan Diebels
  • Erhardt Lach
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Metal foams are low impedance materials which are often used as light weight construction elements, energy absorber and for structural damping. We have coated open cell aluminum foams by a nanocrystalline nickel coating via an electrodeposition process and in this way we could improve the stiffness, energy absorption capacity and the damping behavior of the foams. The mechanical behavior of the coated foams could be tuned by the crystallite size and the thickness of the coating. The foams were characterized in quasi-static compression tests as well as in dynamic compression tests, using a Split Hopkinson pressure bar (SHPB). At the optimized coating thickness of 150 µm Ni, there was an enhancement effect of the energy absorption capability of 800% for 10 ppi foams. Ballistic tests showed the applicability of the foams as splinter shield. A big opportunity of open cell metal foams is that they can be filled for example with elastomeric materials and build a composite structure.

Keywords

Nickel Foam Explosive Perforation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

ReferenceS

  1. 1.
    Ashby MF et al, Metal Foams: a Design Guide (Butterworth-Heinemann, Woburn, 2000) pp. 1-5.Google Scholar
  2. 2.
    Hempelmann R, Jung A, Natter H, Lach E, Metal Foams, EP 09 007 696.9.Google Scholar
  3. 3.
    Jung A, Natter H, Hempelmann R, Diebels S, Koblischka MR, Hartmann U, Lach E, Electrodeposition of nanocrystalline metals on open cell metal foams: improved mechanical properties, ECS-Transactions, 216th Meeting, Vienna (accepted).Google Scholar
  4. 4.
    Jung A, Natter H, Hempelmann R, Diebels S, Koblischka MR, Hartmann U, Lach E, Study of the magnetic flux density distribution of nickel coated aluminum foams, J.Phys. Conf. Ser, 200, 082011, 2010.CrossRefGoogle Scholar
  5. 5.
    Jung A, Natter H, Lach E, Hempelmann R, Nano nickel strengthened open cell metal foams under quasistatic and dynamic loading, Proceedings DYMAT, 7.– 11. September 2009, Brussels, BelgiumGoogle Scholar
  6. 6.
    Zhou J, Shrotriya P, Soboyejo WI, Mechanisms and mechanics of compressive deformation in open-cell Al foams, Mech. Mater. 36, 781-797, 2004.CrossRefGoogle Scholar
  7. 7.
    Hopkinson B, A method of measuring the pressure in the detonation of high explosives or by the impact of bullets, Philos. Trans. R. Soc. Lond. A, 213A, 437-456, 1914.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Anne Jung
    • 1
    • 2
    • 3
    • 4
  • Harald Natter
    • 1
  • Rolf Hempelmann
    • 1
  • Stefan Diebels
    • 2
  • Erhardt Lach
    • 3
  1. 1.Physical ChemistrySaarland UniversitySaarbrueckenGermany
  2. 2.Applied MechanicsSaarland UniversitySaarbrueckenGermany
  3. 3.French-German Research Institute of Saint-Louis (ISL)Saint-LouisFrance
  4. 4.SaarbrueckenD-Germany

Personalised recommendations