Defects formation in YSZ ceramics with different Y2O3 content irradiated with 0.25 MeV electrons energy

This work aims to study the effect of electron irradiation and Y2O3 content on the optical and luminescent properties of translucent cubic yttrium-stabilized zirconia (YSZ) ceramics fabricated by free sintering technique. Commercial nanopowders TZ-8YS and TZ-10YS TOSOH were used for sintering cerami...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2021-12, Vol.189, p.109736, Article 109736
Main Authors: Stepanov, S., Khasanov, O., Dvilis, E., Paygin, V., Valiev, D.
Format: Article
Language:English
Subjects:
Absorption
Cathodoluminescence
Ceramics
Electron beam irradiation
Electron irradiation
Optical properties
Radiation-induced defects
Sintering
Yttria-stabilized zirconia
Yttrium
Yttrium oxide
Yttrium-stabilized zirconia (YSZ) ceramics
Zirconium dioxide
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Summary:This work aims to study the effect of electron irradiation and Y2O3 content on the optical and luminescent properties of translucent cubic yttrium-stabilized zirconia (YSZ) ceramics fabricated by free sintering technique. Commercial nanopowders TZ-8YS and TZ-10YS TOSOH were used for sintering ceramics. It was shown that irradiation leads to the formation of centers of induced absorption, which are deconvoluted by the set of three Gaussian bands with maxima at 2.9, 2.5, and 2.1 eV, respectively. An increase in the Y2O3 content from 8 mol.% to 10 mol.% significantly affect the formation of induced absorption centers. The cathodoluminescence (CL) spectrum can be satisfactorily approximated by the sum of three Gaussian bands (2.8, 2.28 and 2.04 eV). The CL intensity band at 2.8 eV (F+-center) growth when the Y2O3 content leads to an increase. •Cubic yttriа stabilized zirconia ceramics have been fabricated by free sintering technique.•The defect formation process under pulse e-beam excitation was investigated in YSZ ceramics.•The role of Y2O3 on the induced absorption and cathodoluminescent properties of YSZ ceramics was demonstrated.•Assumptions are made about the nature of absorption and cathodoluminescence centers.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2021.109736