Back to Search
Start Over
Nonlinear alternating current response of colloidal suspension with an intrinsic dispersion.
- Source :
-
Journal of Applied Physics . 3/1/2003, Vol. 93 Issue 5, p2871. 5p. 2 Graphs. - Publication Year :
- 2003
-
Abstract
- When a sinusoidal (ac) field is applied to a suspension containing nonlinear dielectric particles, the electrical response will generally consist of ac fields at frequencies of the higher-order harmonics. The situation is further complicated by an intrinsic dielectric dispersion, which often occurs due to the surface conductivity or inhomogeneous structure of the particles. We develop a perturbation method to investigate the effect of intrinsic dielectric dispersion on the harmonics of local field as well as induced dipole moment. The results showed, for weak intrinsic dispersion strength, the ratio of the third to first harmonics of the induced dipole moment decreases as the frequency increases, which is qualitatively in agreement with experiment. However, for a strong dispersion strength, the harmonics ratio increases as the frequency increases. Moreover, an increase in the intrinsic relaxation time may increase the strength of the harmonics. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DIELECTRIC devices
*ELECTRICAL harmonics
*RELAXATION (Nuclear physics)
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 93
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 9214267
- Full Text :
- https://doi.org/10.1063/1.1543637