Detection of tetragonal zirconia in alumina–zirconia powders by thermoluminescence

Abstract : The thermoluminescence (TL) after excitation by UV or X-rays radiation of alumina-zirconia powders is investigated. The composites present five of the characteristic peaks of zirconia at −170, −145, −90, 0 and 95 °C. After a thermal treatment of mixed oxides, a new peak is observed at −35 °C in TL. This peak reveals the presence of stabilized tetragonal zirconia in the material. Moreover by comparing this analysis with those realised by X-ray diffraction (XRD), it can by shown that the TL has one better limit of detection than the XRD.
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Christian Sallé, Philippe Grosseau, Bernard Guilhot, Philibert Iacconi, Mourad Benabdesselam, et al.. Detection of tetragonal zirconia in alumina–zirconia powders by thermoluminescence. Journal of the European Ceramic Society, Elsevier, 2003, 23 (5), pp.667-673. ⟨10.1016/S0955-2219(02)00161-9⟩. ⟨emse-00520249⟩

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