Title :
Percolation phenomena of field grading materials made of two kinds of filler
Author :
Okamoto, Tetsushi ; Koyama, Mitsuhiko ; Inoue, Yoshiyuki ; Takahashi, Nobuyuki ; Nakamura, Shuhei
Author_Institution :
Toshiba Corp., Yokohama, Japan
Abstract :
Electrical properties of the composites made with polybutadiene as a binder resin and SiC and/or Fe3O4 as filler have been studied. It has been found that the percolation threshold pc of Fe3O4 of the composite made with SiC, Fe 3O4 and resin increases with the volume fraction of SiC. It has been suggested that blobs, dead ends and loops on the percolating paths formed by SiC particles prevent the clusters of Fe3O4 from growing to be a percolating path. Thus, more loading of SiC leads to larger percolating threshold pc of Fe3O4
Keywords :
electrical resistivity; filled polymers; iron compounds; percolation; silicon compounds; Fe3O4; Fe3O4 filler; SiC; SiC filler; composite material; electrical resistivity; field grading material; percolation threshold; polybutadiene binder resin; Composite materials; Conductivity; Electrodes; Ferroelectric materials; Inorganic materials; Polymers; Resins; Silicon carbide; Space vector pulse width modulation; Voltage;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973569
