Optimization of Nickel Nanocomposite for Large Strain Sensing Applications

Abstract A novel large strain sensor has been developed using a silicone/nickel nanostrand/nickel coated carbon fiber nanocomposite system. The effect of conductive filler volume fraction on the piezoresistive response of the nanocomposite sensor has been studied in order to determine the optimal composition for use in large strain/motion sensing applications. Electromechanical testing of various compositions revealed that optimum performance was achieved using 11 vol% nickel nanostrands with 2 vol% nickel coated carbon fiber in the silicone matrix. Initial results indicate that this nanocomposite is capable of sensing strains of over 40% elongation.