Piezoresistance behavior of silicone–graphite composites in the proximity of the electric percolation threshold
作者： D.T. Beruto , M. Capurro , G. Marro
DOI: 10.1016/J.SNA.2004.06.027
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摘要: Composites of a silicone matrix charged with graphite powder of micrometric size in volume fractions around the electric percolation threshold (25–35%) have been investigated with regard to their piezoresistance properties. The elastic modulus changes with graphite content, reaching a maximum at 30vol.%. From measurements of electric resistivity, the percolation threshold was determined as 31vol.% at a compressive strain of 2%. The threshold value was found to be dependent on the applied compressive strain so that an …
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