Ionic Conductivity and Transference Number of CaS-Na2S Solid Solution

DOI Web Site 25 References
  • NAKAMURA Hiroaki
    Materials Engineering Laboratory, National Instiute for Materials Science
  • MAIWA Koji
    Materials Engineering Laboratory, National Instiute for Materials Science
  • IWASAKI Satoshi
    Materials Engineering Laboratory, Steel Research Center.

Bibliographic Information

Other Title
  • ＣａＳ‐Ｎａ２Ｓ系固溶体のイオン伝導と輸率
  • CaS-Na2S系固溶体のイオン伝導と輸率
  • CaS Na2Sケイ コヨウタイ ノ イオン デンドウ ト ユリツ

Search this article

Abstract

To obtain highly ionic conductor of sulfides, a solid solution of 95CaS-5Na2S was prepared by sintering the high-purity powder mixture of CaS and Na2S under the pressure of 3kg/cm2 and the temperature of 1423K. The electrical conductivities <BR>of the solid solution were measured under a sulfur partial pressure range from 10-10 to 103 Pa, furthermore the concentration cell Fe, FeS|95CaS-5Na2S|Mn,MnS was constructed and the electro motive force measurements were made.<BR>The conductivity increased by more than two orders of magnitude rather than that of CaS, and was independent on the sulfur partial pressure under an atmosphere of PS<SUB>2</SUB>=10-10-103 Pa and a temperature range of 973∼1173K. These results lead to the conclusion that the 95CaS-5Na2S solid solution is an ionic conductor.<BR>Because the measured emf values for the concentration cell agreed well with the theoretical values calculated from the Nernst equation, it is concluded that the ionic transference number of the solid solution is unity.

Journal

  • Shigen-to-Sozai

    Shigen-to-Sozai 122 (2), 92-97, 2006

    The Mining and Materials Processing Institute of Japan

References(25)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top