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Processing and Electrochemical Properties of Mixed Conducting Lat-xAxCo1-yFeyO3-δ (A=Sr, Ca)

Published online by Cambridge University Press:  16 February 2011

W. J. Weber ,
J. W. Stevenson ,
T. R. Armstrong ,
L. R. Pederson  and
J. J. Kingsley
W. J. Weber
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
J. W. Stevenson
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
T. R. Armstrong
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
L. R. Pederson
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
J. J. Kingsley
Affiliation:
Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352, USA
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Abstract

Powder compositions in the series Lat-xAxCo1-yFeyO3-δ (A=Sr, Ca) have been prepared by a combustion synthesis method. Sintering of pressed powders produced high-density test specimens with the perovskite structure. The specimens exhibited high electrical conductivities with appreciable oxygen-ion conductivity that increased with Co content for the compositions studied. Oxygen permeation studies showed a significant flux of oxygen that increased with temperature for specimens in a P(O2) gradient with no applied field. Thermogravimetric studies of the Lat-xCo0.2Fe0.8O3-δ system indicated a reversible mass loss with increasing temperature that increased with Sr content.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 395
Copyright
Copyright © Materials Research Society 1995

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References

[1] West, A.R., J. Mater. Chem. 1 [2] 157 (1991).Google Scholar
[2] Weber, W.J., Tuller, H.L., Mason, T.O., and Cormack, A.N., Mater. Sci. and Engr. B18, 52 (1993).Google Scholar
[3] Raccah, P.M. and Goodenough, J.B., Phys. Rev. 3, 932 (1967).Google Scholar
[4] Teraoka, Y., Zhang, H.M., Okamoto, K., and Yamazoe, N., Mater. Res. Bull. 23, 51 (1988).Google Scholar
[5] Teraoka, Y., Nobunga, T., Okamoto, K., Miura, N., and Yamazoe, N., Solid State Ionics 48, 207 (1991).Google Scholar
[6] Sekido, S., Tachibana, H., Yamamura, Y., and Kambara, T., Solid State Ionics 37, 253 (1990).Google Scholar
[7] Worrell, W.L., Solid State Ionics 52, 147 (1992).Google Scholar
[8] Anderson, H.U. and Chen, C.C., in Ionic and Mixed Conducting Ceramics, edited by Ramanarayanan, T.A., Worrell, W.L., and Tuller, H.L. (The Electrochemical Society, Pennington, NJ, 1994) pp. 376–383.Google Scholar
[9] Armstrong, T.R., Bates, J.L., Coffey, G.W., Kingsley, J.J., Pederson, L.R., Stevenson, J.W., Weber, W.J., and Youngblood, G.E., in Proc. of the Eighth Annual Conf on Fossil Energy Materials, CONF-9405143, edited by Cole, N.C. and Judkins, R.R. (National Technical Information Service, Springfield VA, 1994) pp. 89–96.Google Scholar
[10] Nagamoto, H., Mochida, I., Kagotani, K., and Inoue, H., J. Mater. Res. 8 [12] 3158 (1993).Google Scholar
[11] Denos, Y., Morin, F., and Trudel, G., in Ionic and Mixed Conducting Ceramics, edited by Ramanarayanan, T.A., Worrell, W.L., and Tuller, H.L. (The Electrochemical Society, Pennington, NJ, 1994) pp. 150–158.Google Scholar
[12] Chick, L.A., Pederson, L.R., Maupin, G.D., Bates, J.L., Thomas, L.E., and Exarhos, G.J., Mater. Lett. 10 [1,2] 6 (1990).Google Scholar
[13] Austin, I.G. and Mott, N.F., Adv. Phys. 18, 41 (1969).Google Scholar
[14] Wimmer, J.M. and Bransky, I., in Electrical Conductivity in Ceramics and Glasses, Part A, Ch. 4, edited by Tallan, N.M. (Marcel Dekker, New York, 1974) pp. 269–311.Google Scholar