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Characterization of yittria stabilized zirconia/titania core-shell powders synthesized via air plasma spray method

Dadfar, M. R ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matchemphys.2017.07.086
  3. Abstract:
  4. In this study, Yittria Stabilized Zirconia/Titania powders synthesized via air plasma spray (APS) method such as morphology changes and phase transformations of core-shell structure characterized. Phase analysis of powders was performed by XRD. The crystallite size and lattice strain of YSZ/TiO2 core-shell structure was calculated by Williamson-Hall method. Morphology was observed with scanning electron microscope. EDS and map analysis were used for core-shell characterization. Results revealed that all TiO2 nano particles were melted around YSZ powders with the thickness between 1 up to 5 μm. After spraying the YSZ/TiO2 mixture in water, strain values increased but crystallite size decreased. Moreover, the monoclinic phase transformed to tetragonal phase but cubic phase remained constant, approximately. © 2017 Elsevier B.V
  5. Keywords:
  6. YSZ ; Characterization ; Crystallite size ; Nanoparticles ; Plasma jets ; Plasma spraying ; Powders ; Scanning electron microscopy ; Yttria stabilized zirconia ; Zirconia ; Air plasma spray ; Air plasma spray method ; Core shell ; Core shell structure ; Phase characterization ; TiO2 ; TiO2 nano-particles ; Yittria stabilized zirconias ; Shells (structures)
  7. Source: Materials Chemistry and Physics ; Volume 200 , 2017 , Pages 280-286 ; 02540584 (ISSN)
  8. URL: https://www.sciencedirect.com/science/article/pii/S0254058417306053