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Applied Physics Letters / Browse Journal / Volume 88 / Issue 10 / ELECTRONIC TRANSPORT AND SEMICONDUCTORS

Appl. Phys. Lett. 88, 102103 (2006); doi:10.1063/1.2183359 (3 pages)

Metal–polymer composite with nanostructured filler particles and amplified physical properties

D. Bloor1, A. Graham1, E. J. Williams1, P. J. Laughlin2, and D. Lussey2

1Department of Physics, Durham University, Durham DH1 3LE, United Kingdom Map This map
2Peratech Ltd., G3 Morton Park Way, Darlington DL1 4PJ, United Kingdom Map This map

(Received 14 July 2005; accepted 1 February 2006; published online 7 March 2006)

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The limits of conductivity of a novel elastomeric matrix–nanostructured nickel powder composite are reported. The conductivity falls by a factor of ≥ 2×1014 for compression and by a similar amount in extension. Uncompressed and highly compressed composite displays ohmic behavior but between these limits the current-voltage characteristics are highly nonlinear. The matrix intimately coats the filler so that even above the expected percolation threshold the composite has a very low conductivity. The conductivity of the composite is increased under all mechanical deformations. These and other unusual properties are amplified versions of smaller effects seen in composites containing less highly structured fillers.

© 2006 American Institute of Physics

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KEYWORDS and PACS

Keywords

nickel, filled polymers, particle reinforced composites, elastomers, nanoparticles, electrical conductivity, percolation, deformation

PACS

  • 81.40.Rs

    Electrical and magnetic properties related to treatment conditions

  • 72.80.Tm

    Composite materials

  • 81.40.Lm

    Deformation, plasticity, and creep

  • 62.20.F-

    Deformation and plasticity

ARTICLE DATA

Permalink
http://link.aip.org/link/APPLAB/v88/i10/p102103/s1

PUBLICATION DATA

ISSN:

0003-6951 (print)  
1077-3118 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

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