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Synthesis and Characterization of Nano-crystalline La2Zr2O7 Film by Reactive Spray Deposition Technology for Application in Thermal Barrier Coatings

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Abstract

Lanthanum zirconate (La2Zr2O7) nano-crystalline films with cubic structure have been successfully prepared by a facile synthesis approach called reactive spray deposition technology (RSDT). La2Zr2O7 nanoparticles are produced by combusting a precursor solution of lanthanum acetylacetonate hydrate and zirconium acetylacetonate dissolved in an organic solvent mixture. The nanoparticles formed during the combustion process are directly deposited onto the substrate. The composition and microstructure of the as-deposited films are extensively characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The thermal diffusivities of the films are investigated by the means of laser flash method.

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Authors and Affiliations

  1. University of Connecticut, 97 North Eagleville Road, Storrs, CT, 06269-3136, USA

    Yang Wang, Rishi Kumar & Radenka Maric

  2. FEI Company, 5350 NE Dawson Creek Drive, Hillsboro, OR, 97124, USA

    Justin Roller

Authors
  1. Yang Wang
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  2. Rishi Kumar
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  3. Justin Roller
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  4. Radenka Maric
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Wang, Y., Kumar, R., Roller, J. et al. Synthesis and Characterization of Nano-crystalline La2Zr2O7 Film by Reactive Spray Deposition Technology for Application in Thermal Barrier Coatings. MRS Advances 2, 1519–1525 (2017). https://doi.org/10.1557/adv.2017.154

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  • DOI: https://doi.org/10.1557/adv.2017.154

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