The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Cation Self-Diffusin and Impurity Diffusion of Mn and Zn in CoO: (I) A comparison of the Residual Activity and the Tracer Sectioning Method

  • Lee, Jong-Ho (Institute of Physical Chemistry, Electrochemistry, Darmstadt University of Technology) ;
  • Martin, Manfred (Institute of Physical Chemistry, Electrochemistry, Darmstadt University of Technology)
  • Published : 1998.06.01
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Abstract

Self diffusion coefficients of $^{67}$Co and impurity diffusion coefficients of $^{51}$Mn and $^{65}$Zn in single crystalline CoO have been measured by applying different radioactive isotopes simultaneously. To compare the residual activity method and the tracer sectioning method we analyzed our tracer diffusion experiments by using both methods simultaneously. According to our experimental results, the diffusion coefficients obtained from both methods are identical within experimental error, demonstrating the relibility of our experimental procedures. The diffusion coefficients of all the isotopes obtained during these test experiments for the methodology are similar in magnitude and show similar dependences on oxygen partial pressure. These first observations indicate that impurity diffusion of Mn and Zn occur via a vacancy mechanism as known for self diffusion of cobalt.

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References

  1. Trans. AIME v.200 no.11 An Examination of the Decrease of Surface-activity Method of Measuring Self Diffusion Coefficient in Wustite and Cobaltous Oxide R. E. Carter;F. D. Richardson
  2. J. Chem. Phys. v.44 no.4 Electrical Properties of Cobalt Monoxide B. Fisher;D. S. Tannhauser
  3. Ber. Bunsenges. Physik. Chem. v.72 no.7 Coulometrische Titration an Uebergangsmetalloxiden H.-G. Sockel;H. Schmalzried
  4. J. Phys. Chem. Solids v.33 Hall Mobility and Defect Structure in Undoped and Cr-or Ti-doped CoO at High Temperature M. Givish;D. S. Tannhauser
  5. J. Phys. Chem. Solids v.33 The High Temperature Defect Structure of CoO I. Bransky;J. M. Wimmer
  6. Z. Physik. Chem. NF v.107 Cobaltous Oxide Point Defect Structure and Nonstoichiometry, Electrical Conductivity, Cobalt Tracer Diffusion R. Dieckmann
  7. J. Phys. Chem. Solids v.41 Isotope Effect for Cation Diffusion in CoO W. K. Chen;N. L. Peterson
  8. Z. Physik. Chem. NF v.139 Nonstoichiometry and Chemical Diffusion of Cobaltous Oxide U. Hoelscher;H. Schmalzried
  9. Solid State Ionics v.12 Transport Properties in Pure and Lithium-doped Cobaltous Oxide G. Potot-Ervas;P. Ochin;B. Sossa
  10. J. Phys. Chem. Solids v.45 Cation Impurity Diffusion in CoO and NiO K. Hoshino;N. L. Peterson
  11. J. Phys. Chem. Solids v.51 no.3 Transport Properties of P-type Semiconducting Oxides-Influence of Aliovalent Impurites G. Petot-Ervas;C. Petot;F. Gesmundo
  12. Ber. Bunsenges. Phys. Chem. v.101 The Conductivity of CoO: Experimental Data and a New Conductivity Model F. Lange;M. Martin
  13. J. Am. Ceram. Soc. v.72 Defect Structure of Cobalt Monooxide : I. The Ideal Defect Model J. Nowotny;M. Rekas
  14. J. Am. Ceram. Soc. v.72 Defect Structure of Cobalt Monoxide: II. The Debye-Huckel Model J. Nowotny;M. Rekas
  15. J. Am. Ceram. Soc. v.72 Defect Structure of Cobalt Monooxide: III. The Cluster Model J. Nowotny;M. Rekas
  16. Z. Physik. Chem. NF v.168 Cross Effect Between Electronic and Ionic Flows in Semiconducting Transition Metal Oxides H.-I. Yoo;H. Schmalzried;M. Martin;J. Janek
  17. Ceram. Trans., v.24 A Chemical Electomigration Experiment in a Semiconducting Oxide H.-I. Yoo;M. Martin
  18. Solid State Ionics v.67 Experimental Evidence of the Interference Between Ionic and Electronic Flows in an Oxide with Prevailing Electron Conduction H.-I. Yoo;J.-H. Lee;M. Martin;J. Janek;H. Schmalzried
  19. J. Electrochem. Soc. v.141 Electrochemical Study of the Cross Effect Between Ion and Electron Flows in Semiconducting CoO J.-H. Lee;H.-I. Yoo
  20. Solid State Ionics v.101-103 Influence of Impurity and Dopant Ions on the Electrotransport Properties in Oxides M. Schroeder;J.-H. Lee;M. Martin
  21. Ceram. Trans. v.24 Non-stoichiometry and Point Defect Structure of Cobaltous Oxide S. Aggarwal;R. Dieckmann
  22. Phil. Mag. A v.68 Tracer-Diffusion and Defect Structure in Ga-doped CoO R. Schmackpfeffer;M. Martin
  23. Z. Phys. Chem. v.207 Cation Tracer Diffusion and Electrotransport in Semiconducting Cobaltous Oxide $Co_{1-{\delta}}O$ M. Schroeder;M. Martin
  24. Modular Pulse-processing Electronics and Semiconductor Radiation Detectors EG & G ORTEC