Electrothermal instability of a polar polymer dielectric above the glass transition temperature |
| |
Authors: | O A Emel’yanov |
| |
Affiliation: | (1) St. Petersburg State Technical University, St. Petersburg, Russia |
| |
Abstract: | A stationary temperature state of a polar polymer dielectric exposed to an electric field is studied. A special feature of
the dielectrics of this type is the presence of a maximum in the loss factor ε″(T) above the glass transition temperature. Using an approach based on the Kirkwood formula for ε″(T), exact solutions to a nonlinear model problem are obtained. These solutions show the multiplicity of the stationary temperature
states and the surface of these states in the “load-ambient temperature” space of parameters exhibits a topological singularity
of the “fold” type. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|