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Characterization of Plasma-sprayed Zirconia Coatings by X-ray Diffraction and Raman Spectroscopy(Materials, Metallurgy & Weldability)

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Abstract

Three zirconia ceramics, ZrO_2-4.5mol%Y_2O_3, ZrO_2-12mol%Y_2O_3, and ZrO_2-8mol%MgO, before and after plasma spraying were investigated by X-ray diffraction. The amounts of monoclinic, tetragonal and cubic phases existing in the three zirconia ceramics were determined from the integrated intensity ratios in the {400} and {111} regions of the X-ray diffraction patterns. Tetragonal-to-monoclinic transformation in the plasma-sprayed coatings caused by indentation, fracture and/or heat treatment of laser beam was examined by Raman spectroscopy. As a result, this spectroscopic technique is shown to be a powerful tool for the observation of this transformation. Furthermore, microanalysis of the coatings was performed by the use of Raman microprobe spectroscopy.

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Details

  • CRID
    1570854177301936640
  • NII Article ID
    110006486600
  • NII Book ID
    AA00867058
  • ISSN
    03874508
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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