Mechanical properties of innovative metal/ceramic composites based on freeze-cast ceramic preforms

  • Siddhartha Roy
  • Jens Gibmeier
  • Kay André Weidenmann
  • Alexander Wanner


This article provides an overview of recent research carried out about the mechanical properties of an innovative metal/ceramic composite fabricated by squeeze-casting liquid Al-12Si in freeze-cast alumina preforms. The composite consists of domains made of alternating metallic and ceramic lamellae. Elastic and elastic-plastic deformation behavior and mechanism of internal load transfer under external compressive stresses in individual domains with different orientations were studied. Results show that the stiffness is highest along the freezing direction and lowest along the direction perpendicular to it. When compressed along directions parallel to freezing direction, the composite is strong and brittle. When compressed along other directions, the behavior is controlled by the soft metallic alloy. Studies of internal load transfer under external compressive stress along different directions show that the mechanism of internal load transfer differs significantly when loading direction changes from that along the freezing direction to the direction perpendicular to it.


Metal Matrix Composite Lamella Spacing Domain Orientation Ceramic Preform Freezing Direction 
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  1. 1.
    Mortensen A, Llorca J (2010) Metal matrix composites. Annu Rev. Mater. Res. 40: 243–270CrossRefGoogle Scholar
  2. 2.
    Chawla N, Chawla KK (2006) Metal matrix composites. Springer, New YorkGoogle Scholar
  3. 3.
    Lloyd DJ (1997) in Mallick PK (ed) Composites Engineering Handbook, Marcel Dekker Inc.Google Scholar
  4. 4.
    Deville S, Saiz E et al (2006) Freezing as a path to build complex composites. Sci. 311: 515 – 518CrossRefGoogle Scholar
  5. 5.
    Deville S, Saiz E et al (2007) Ice-templated porous alumina structures. Acta Mater. 55: 1965 – 1974CrossRefGoogle Scholar
  6. 6.
    Mattern A (2005) Metall-Keramik-Verbundwerkstoffe mit Isotropen und Anisotropen Al2O3 Verstärkungen. Dissertation: Universität Karlsruhe (TH)Google Scholar
  7. 7.
    Waschkies T, Oberacker R et al (2009) Control of lamellae spacing during freeze-casting of ceramics using double-sided cooling as a novel processing route. J Am Ceram Soc. 92: S79 – S84CrossRefGoogle Scholar
  8. 8.
    Wanner A (1998) Elastic moduli measurements of extremely porous ceramic materials by ultrasonic phase spectroscopy. Mater. Sci. Engg. A248: 35 – 43Google Scholar
  9. 9.
    Roy S, Wanner A (2008) Metal/ceramic composites from freeze-cast preforms: domain structure and mechanical properties. Comp. Sci. Technol. 68: 1136 – 1143CrossRefGoogle Scholar
  10. 10.
    Roy S, Gibmeier J et al (2009) In-situ study of internal load transfer in a novel metal/ceramic composite exhibiting lamellar microstructure using energy dispersive synchrotron X-ray diffraction. Adv. Engg. Mater. 11: 471 – 477CrossRefGoogle Scholar
  11. 11.
    Postma GW (1955) Wave propagation in a stratified medium. Geophysics. 20: 780 – 806CrossRefGoogle Scholar
  12. 12.
    Roy S, Butz B et al (2010) Damage evolution and domain-level anisotropy in metal/ceramic composites exhibiting lamellar microstructures. Acta Mater. 58: 2300–2312CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Siddhartha Roy
    • 1
  • Jens Gibmeier
    • 1
  • Kay André Weidenmann
    • 1
  • Alexander Wanner
    • 1
  1. 1.Institut für Angewandte Materialien, Karlsruher Institut für TechnologieKarlsruheGermany

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