Multiscale model for the extreme piezoresistivity in silicone/nickel nanostrand nanocomposites

Oliver K. Johnson, Calvin J. Gardner, Daniel B. Seegmiller, Nathan A. Mara, Andrew M. Dattelbaum, Philip J. Rae, George C. Kaschner, Thomas A. Mason, David T. Fullwood, George Hansen

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Extreme piezoresistivity was discovered in a silicone/nickel nanostrand (silicone/NiNs) nanocomposite. A novel technique was developed to study the charge transport phenomena responsible for the piezoresistive mechanism in the silicone/NiNs system using conductive nanoindentation. A quantum mechanical tunneling (QMT)/percolation model was developed, which bridges the gap between quantum effects at the nanoscopic scale and bulk material response at the macroscopic scale. The predictions of this model are compared to experimental measurements.

Original languageEnglish
Pages (from-to)3898-3906
Number of pages9
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume42
Issue number13
DOIs
StatePublished - Dec 2011
Externally publishedYes

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