Hostname: page-component-76fb5796d-45l2p Total loading time: 0 Render date: 2024-04-27T04:03:09.117Z Has data issue: false hasContentIssue false
  • English
  • Français

Composition-Dependent Electrical Conductivity of Ionic-Electronic Composite

Published online by Cambridge University Press:  10 February 2011

M. Park  and
G. M. Choi
M. Park
Affiliation:
Ohang University of Science and Technology, Dept. of Materials Science and Engineering, Ohang, 790–784, Korea
G. M. Choi
Affiliation:
Ohang University of Science and Technology, Dept. of Materials Science and Engineering, Ohang, 790–784, Korea
Get access

Abstract

Composition. dependence of electrical conductivity of ionic-electronic composite was camined using yttria(8mol%) stabilized zirconia-NiO composites. The contributions of ectronic and ionic charge carriers to the electrical conductivity were determined by Hebb-Vagner polarization technique and electromotive force measurement of galvanic cell. Up to 6 sol% NiO addition, the conductivity decreased since the electronic NiO acted as an insulator in onic matrix. However the ionic transport was dominant until NiO content reaches 26 vol%. Mixed conduction was observed between 26 and 68 vol% of NiO. The effects of composition on he electrical properties were explained by the microstructure and thus by the distribution of two hases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 500: Symposium EE – Electrically Based Microstructural Characterization II , 1997 , 327
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Göpel, W. and Wiemhöfer, H. D., Ber. Bunsenges. Phys. Chem., 94, p. 981 (1990).Google Scholar
2. Houten, S. V., “Semiconduction in LixNi(1-x)O,” J. Phys. Chem. Solids, 17, p. 7 (1960).Google Scholar
3. Kuzjukevics, A. and Linderoth, S., “Interaction of NiO with Yttria-Stabilized Zirconia,” Sol. St. Ionics, 93, p. 255 (1997).Google Scholar