Inorganic Materials

, Volume 36, Issue 5, pp 479–483 | Cite as

Influence ofF centers on the optical and adsorptive properties of doped ZrO2 crystals

  • V. V. Sal’nikov


The optical and adsorptive properties of Y2O3-stabilized (10 mol %) cubic ZrO2 crystals reduced in a hydrogen atmosphere at 1473 K for 3 and 5 h were studied by ellipsometry. The optical constantsn, k, ε l , andε 2 were determined from the ellipsometric parameters measured in the temperature range 297 to 623 K in vacuum. The optical constants were found to depend on the reduction time, obviously due to changes in oxygen stoichiometry. CO2 adsorption on the surface of the crystal reduced for 3 h was studied in the range 523–623 K. At CO2 pressures of ≤2 kPa, the amount of adsorption was found to rise with temperature. The thickness of the surface layer disturbed by CO2 adsorption attained 260 Å at 623 K.F + centers are assumed to act as active surface sites.


Oxygen Vacancy Optical Constant Yttria Stabilize Zirconia Oxygen Stoichiometry Ellipsometric Parameter 
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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • V. V. Sal’nikov
    • 1
  1. 1.Institute of High-Temperature Electrochemistry, Ural DivisionRussian Academy of SciencesYekaterinburgRussia

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