| 학회 |
한국재료학회 |
| 학술대회 |
2010년 봄 (05/13 ~ 05/14, 삼척 팰리스 호텔) |
| 권호 |
16권 1호 |
| 발표분야 |
C. Energy and the Environment(에너지 및 환경재료) |
| 제목 |
A Study on the Percolation Threshold of Polyethylene Matrix Composites filled Carbon powder |
| 초록 |
In this research, the percolation threshold of the carbon powder-filled polyethylene matrix composites is investigated based on the experimental results of the changes in resistivity and relative permittivity for filling carbon powder, the electric field dependence of current, and the critical exponent of conductivity. It was found that a formation of infinite clusters is interrupted by a tunneling gap in the volume fraction section of carbon powder filling where the change in resistivity is extremely large. It was also found that the critical exponent of conductivity for the universal law of conductivity is satisfied if the percolation threshold is estimated at the volume fraction of carbon powder where a nonohmic current behavior changes into an ohmic one. It is concluded that the percolation threshold should be defined at this volume fraction of carbon powder. |
| 저자 |
신순기 |
| 소속 |
강원대 |
| 키워드 |
percolation threshold; carbon powder; polyethylene; composites; tunneling conduction.
|
| E-Mail |
|
