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2002 | 102 | 2 | 295-299
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Nanocrystalline and Polycrystalline Phases Present in the Protective Metalloceramic Coatings

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New data about the structure of high-temperature resistant metalloceramic plasma sprayed coatings in micro and nano areas are presented. Application of the new instrumental methods: transmission electron microscopy combined with selected area electron diffraction made it possible to obtain these data. The first layer in Ni based metallic bondcoat shows nanocrystalline structure. External ceramic layer based on stabilised ZrO_2 is polycrystalline and contains both cubic and tetragonal crystalline phases. Local inhomogeneities in coatings phase composition are determined.
  • Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland
  • Institute of Metallurgy and Material Science, Polish Academy of Sciences, Reymonta 25, 30-059 Kraków, Poland
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