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Sinterability and electrical conductivity of calcium-doped lanthanum chromites

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Abstract

Calcium-doped lanthanum chromites, (La1−x Ca x ) (Cr1− y Cay O3, have been synthesized to investigate effects of calcium doping on sinterability and electrical conductivity. X-ray diffractometric results have revealed that in addition to normal perovskites (La1− xCa x CrO3), chromium-deficient perovskites can exist as a single phase in the composition region 0.1 <x < 0.3, although the deficit of chromium is small. These chromium-deficient perovskites show a good sinterability even in air at 1873 K. Electrical conductivity of these perovskites has been measured as functions of temperature and oxygen potential. It has been found that electrical conductivity of the chromium-deficient perovskites increases almost linearly with total calcium content. The magnitudes of electrical conductivity are comparable to those of strontium-doped lanthanum chromites.

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References

  1. H. Kleinschmager andA. Reich,Z. Naturforsch. 27 (1972) 363.

    Google Scholar 

  2. S. Hayashi, K. Fukaya andH. Saito,J. Mater. Sci. Lett. 7 (1988) 457.

    Google Scholar 

  3. S. Song, M. Yoshimura andS. Somiya,Yogyo- Kyokai-shi 90 (1982) 484.

    Google Scholar 

  4. A. O. Isenberg,Solid State Ionics 3/4 (1981) 431.

    Google Scholar 

  5. B. K. Flandermeyer, J. T. Dusek, P. E. Bluckburn, D. W. Dees, C. C. McPheeters andR. B. Poeppel, Abstracts of 1986 National Fuel Cell Seminar (Courtesy Associates, Inc., Washington D.C., 1986) p. 76.

    Google Scholar 

  6. R. Berjoan, C. Ronald andJ. P. Coutures,High. Temp. Sci. 13 (1973) 173.

    Google Scholar 

  7. D. P. Karim andA. T. Aldred,Phys. Rev. 20 (1979) 2255.

    Google Scholar 

  8. J. B. Goodenough,J. Appl. Phys. 37 (1966) 1415.

    Google Scholar 

  9. K. Matsumoto andT. Sata,Yogyo-Kyokai-Shi 89 (1981) 68.

    Google Scholar 

  10. Idem, ibid. 89 (1981) 124.

    Google Scholar 

  11. T. Sasamoto andT. Sata,Yogyo-Kyokai-Shi 79 (1971) 408.

    Google Scholar 

  12. H. U. Anderson, in “Processing of Crystalline Ceramics”, edited by H. Palmour III, R. F. Davis and T. M. Hare (Plenum, New York, 1978) p. 469.

    Google Scholar 

  13. D. Meadowcroft,Brit. J. Appl. Phys. 2 (1969) 1225.

    Google Scholar 

  14. K. P. Bansal, S. Kumari, B. K. Das andG. C. Jain,Trans. J. Brit. Ceram. Soc. 80 (1981) 215.

    Google Scholar 

  15. H. Yokokawa, unpublished work.

  16. B. F. Flandermeyer, M. M. Nasrallah, D. M. Spalin andH. U. Anderson,High. Temp. Sci. 20 (1985) 259.

    Google Scholar 

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Authors and Affiliations

  1. National Chemical Laboratory for Industry, Tsukuba Research Centre, 305, Ibaraki, Japan

    N. Sakai, T. Kawada, H. Yokokawa & M. Dokiya

  2. Fuji Electric Corporate Research and Development Ltd, Nagasaka, Yokosuka, 240-01, Kanagawa, Japan

    T. Iwata

Authors
  1. N. Sakai
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  2. T. Kawada
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  3. H. Yokokawa
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  4. M. Dokiya
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  5. T. Iwata
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Sakai, N., Kawada, T., Yokokawa, H. et al. Sinterability and electrical conductivity of calcium-doped lanthanum chromites. J Mater Sci 25, 4531–4534 (1990). https://doi.org/10.1007/BF00581119

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  • DOI: https://doi.org/10.1007/BF00581119

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