Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-07-06T18:18:54.286Z Has data issue: false hasContentIssue false

Influence of the Metal/Ceramic Interface Characteristics on Conductivity Measurements of Na-β" Alumina by Impedance Spectroscopy

Published online by Cambridge University Press:  25 February 2011

M. Schreiber
Affiliation:
Daimler-Benz AG, Materials Research Laboratory, Ulm, Germany
E. Butchereit
Affiliation:
Daimler-Benz AG, Materials Research Laboratory, Ulm, Germany
C. Lutz
Affiliation:
Daimler-Benz AG, Materials Research Laboratory, Ulm, Germany
Get access

Abstract

The quality of the metal/ceramic interface of solid ionically conducting materials is an important when undertaking impedance spectroscopy measurements. One major concern is the contact area between the metal and the ceramic. This work focussed on the treatment of the ceramic to the metal application by utilizing a standard quality Na-β" alumina. Next, a number of different metals were applied to the ceramic surface by different techniques, i.e. sputtering and evaporation, to serve as blocking electrodes in impedance spectroscopy measurements. The impedance spectroscopy measurements were carried out at temperatures from 30 - 300°C over a frequency range from 1 to 5 ×105 Hertz. The results are discussed in terms of the various parameters of impedance plots. Surface analysis techniques were applied to investigate the metal/ceramic interface before and after impedance spectroscopy measurements.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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

1. Lilley, E., Strutt, J. E., Phys. Stat. Sol. 54, 639 (1979).Google Scholar
2. Armstrong, R. D., Dickinson, T., Willis, P. M., J. Electroanal. Chem. 67, 121 (1976).Google Scholar
3. Armstrong, R. D., Dickinson, T., Willis, P. M., J. Electroanal. Chem. 53, 389 (1974).Google Scholar
4. Armstrong, R. D., Burnham, R. A., J. Electroanal. Chem. 72, 257 (1976).Google Scholar
5. Heavens, S. N., J. Mater. Sci. 17, 965 (1982).Google Scholar
6. Dunn, B., J. Amer. Ceram. Soc. 64, 125 (1981).Google Scholar
7. Nagai, M., Kushida, T., Nishino, T., Solid State Ionics 40/41, 107 (1990).Google Scholar
8. Armstrong, R. D., Sellick, D. P., J. Appl. Electrochem. 9, 623 (1979).Google Scholar
9. Armstrong, R. D., Sellick, D. P., Electrochimica Acta 25, 1199 (1980).Google Scholar
10. Hunter, C. C., Ingram, M. D., West, A. R., Journal of Materials Science Letters 1, 522 (1982).Google Scholar