PERCOLATION IN CARBON-BLACK POWDERS

被引：40

作者：

EHRBURGERDOLLE, F ^{[1
]}

LAHAYE, J ^{[1
]}

MISONO, S ^{[1
]}

机构：

[1] TOKAI CARBON CO,FUJI RES LAB,SHIZUOKA 41014,JAPAN

来源：

CARBON | 1994年 / 32卷 / 07期

关键词：

CARBON BLACK; PERCOLATION; UNIAXIAL COMPACTION; CONDUCTIVITY; FRACTAL;

D O I：

10.1016/0008-6223(94)90123-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The variation of conductivity and pressure transmitted by several carbon black powders is measured as a function of the solid volume fraction during low-speed uniaxial compaction. For all samples made of aggregates, the experimental results of both pressure and conductivity can be fitted with a percolation law. The percolation thresholds are, however, much smaller than the theoretical value phi(*) = 0.15. It is shown that the percolation threshold depends on the mass fractal dimension and on a length R(max) characteristic of the aggregates of a given carbon black.

引用

页码：1363 / 1368

页数：6