ZnSb_2O_6及び(Zn_<1-x>M_x)Sb_2O_6(M=Co, Ni, Cu)焼結体の電気伝導度と熱電性 Electrical Conductivity and Thermoelectricity of ZnSb_2O_6 and (Zn_<1-x>M_x)Sb_2O_6(M=Co, Ni, Cu) Ceramics

Abstract

Temperature dependence of electrical conductivity and thermoelectricity of trirutile-type ZnSb_2O_6 and (Zn, M)Sb_2O_6 (M=Co, Ni, Cu) ceramics were measured at temperatures ranging from room temperature to 800℃. All samples showed n-type behavior. The conductivity (σ) and thermoelectricity (α) of ZnSb_2O_6 were found to increase with increasing temperature and reached 10^0S・cm^<-1> and 190 μV・K^<-1> respectively, at 800℃. This behavior was explained by considering the carrier electrons to be supplied by oxygen defects and to have thermal activation characteristics. Partial substitution of Zn by Co, Ni, or Cu ions reduced the conductivity and increased the negative Seebeck coefficient. In the present system, a relationship between the apparent activation energies of conductivity and the lattice length of the c-axes of the crystal structure was observed. The measured electrical conductivities were not sufficient for practical use as thermoelectric materials.

Journal

Journal of the Ceramic Society of Japan   [List of Volumes]

Journal of the Ceramic Society of Japan 108(1257), 435-438, 2000-05-01  [Table of Contents]

The Ceramic Society of Japan

References:  4

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Cited by:  2

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Codes

  • NII Article ID (NAID) :
    110002289827
  • NII NACSIS-CAT ID (NCID) :
    AN10040326
  • Text Lang :
    ENG
  • Article Type :
    Journal Article
  • ISSN :
    09145400
  • NDL Article ID :
    5378466
  • NDL Source Classification :
    ZP9(科学技術--化学・化学工業--無機化学・無機化学工業--セラミックス・窯業)
  • NDL Call No. :
    Z17-249
  • Databases :
    CJP  CJPref  NDL  NII-ELS  Journal@rchive 

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