Effects of interfacial polarization and loading factor in dielectric‐loss measurements of composites

Autor:	Daniel J. Mickish
Rok vydání:	1979
Předmět:	Dipole Materials science Electrical resistivity and conductivity Dember effect General Physics and Astronomy Charge carrier Dielectric loss Dielectric Composite material Conductivity Polarization (electrochemistry)
Zdroj:	Journal of Applied Physics. 50:5923-5929
ISSN:	1089-7550 0021-8979
Popis:	The effect of the loading factor (the ratio of the conductive volume to the total volume) of a composite can lead to errors of 20% if not considered when interpreting dielectric‐loss measurements. Free‐carrier interfacial polarization is shown to be unimportant in the interpretation of the Maxwell‐Wagner effect for certain classes of composites contrary to currently accepted thought, whereas it can be important in the interpretation of the Dember effect for the same materials. Non‐Debye loss in cases where free‐carrier interfacial polarization is unimportant is shown to be caused by an additional frequency‐dependent component of the conductivity, e.g., that caused by dipole reorientation or conformational rearrangement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f2a2d0cb87621fa2a3fb6734ae67a41 https://doi.org/10.1063/1.326692 Zobrazit plný text záznamu