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

fYear

2001

fDate

2001

Firstpage

83

Lastpage

86

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 p_c 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 p_c 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973569

Filename

973569