Electrical-Field Induced Nonlinear Conductive Behavior In Dense Zirconia Ceramic

Keywords

Electric field effect; Flash sintering; Non-linear conductivity; Zirconia

Abstract

The effect of the applied electric field on the conductive behavior of zirconia ceramics is studied by measuring its initial current-voltage curve at various temperatures. The results show that when the field strength is higher than the threshold for flash-sintering, the curves exhibit a nonlinear behavior by having an additional current on top of the linear current according to Ohm's law. Analyzing its transport behavior reveals that the additional current density is due to the extra oxygen vacancies induced by the electric field. The formation rate of the extra vacancies and associated current was related to the field strength.

Publication Date

8-1-2017

Publication Title

Journal of Materials Science and Technology

Volume

33

Issue

8

Number of Pages

897-900

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jmst.2017.03.005

Socpus ID

85015399983 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85015399983

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