せん断流動下での炭素繊維分散シリコンオイルの導電性挙動 : 二重円筒型電極の場合

概要

論文の詳細を見る
Volume resistivity of carbon-fiber-filled silicone oil was measured under shear flow. A rheometer with double-cylinder-type sample cell was employed to measure the volume resistivity. Both the outer and inner cylinders were used as electrodes. The reproducibility of volume resistivity measurements under shear flow using the double-cylinder-type cell was better than that of the parallel-plate-type cell. The critical values for a sudden increase in volume resistivity were found when both shear rate and volume fraction of fibers were varied. These experimental results were interpreted on the basis of a quantitative model for the formation and destruction of an electric circuit by fibers. The results were also correlated with the interaction and orientation of fibers. A new method of measuring volume resistivity was established as a means of investigating the fiber orientation distribution in the matrix for the conductive-fiber-filled insulating matrix composite materials.
社団法人日本機械学会の論文
1996-03-25