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Scaling Laws for Properties of Materials with Imperfect Interfaces

  • J. Wang
  • B.L. Karihaloo
  • H.L. Duan
Conference paper
Part of the Iutam Bookseries book series (IUTAMBOOK, volume 10)

Abstract

Surfaces/interfaces have a profound effect on the properties of nanostructured and heterogeneous materials due to the large ratio of surface/interface atoms to the bulk. Imperfect interfaces widely exist in conventional composites and nanostructured materials. This paper shows that when imperfect interfacial bonding conditions are taken into account, some intrinsic length scales emerge. Thus, in contrast to the perfectly-bonded interfaces, the effective properties of heterogeneous materials containing inhomogeneities with imperfect interfaces become dependent upon the size of the inhomogeneities. This size-dependence is shown to be captured by simple scaling laws depending upon the type of the interface imperfection.

Keywords

Surface/interface stress linear spring model high/low conducting interface effective elastic constants effective conductivities size effect scaling laws 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • J. Wang
    • 1
  • B.L. Karihaloo
  • H.L. Duan
  1. 1.LTCS and College of Engineering, Peking UniversityP. R. China

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