Surface Morphology Analysis of Zirconium Dioxide Nanoparticles at 1200 K by Transmission Electron Microscopy
Zirconium dioxide (ZrO2) nanoparticles were heated at 1200 K in a transmission electron microscope, and their surfaces were observed in situ via lattice imaging. The nanoparticles exhibited well-defined crystal habits while fluctuating the surface terrace structures.
The stable surfaces and ridges were inferred from the fluctuation of the terraces, leading to the construction of the three-dimensional surface structures at 1200 K. By contrast, after the specimen cooled to room temperature, the surface fluctuation of the nanoparticles stopped and the crystal
habit disappeared, implying that the crystal habit was maintained because of atomic diffusion during the surface fluctuation.
Keywords: High-Temperature; Nanoparticles; Surface Morphology; Zirconium Dioxide; in situ Transmission Electron Microscopy
Document Type: Research Article
Affiliations: Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
Publication date: January 1, 2018
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