Sinterability and electrical conductivity of calcium-doped lanthanum chromites View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1990-10

AUTHORS

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

ABSTRACT

Calcium-doped lanthanum chromites, (La1−xCax) (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−xCaxCrO3), chromium-deficient perovskites can exist as a single phase in the composition region 0.1 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. More... »

PAGES

4531-4534

References to SciGraph publications

  • 1988-05. Sintering of lanthanum chromite doped with zinc or copper in JOURNAL OF MATERIALS SCIENCE LETTERS
  • 1978. Fabrication and Property Control of LaCro3 Based Oxides in PROCESSING OF CRYSTALLINE CERAMICS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf00581119

    DOI

    http://dx.doi.org/10.1007/bf00581119

    DIMENSIONS

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