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Open AccessArticle

The Preparation and Microstructure of Nanocrystal 3C-SiC/ZrO2 Bilayer Films

College of Energy, Xiamen University, Xiamen 361102, China
China Academy of Engineering Physics, Mianyang 621900, China
Authors to whom correspondence should be addressed.
Nanomaterials 2017, 7(12), 408;
Received: 11 October 2017 / Revised: 30 October 2017 / Accepted: 20 November 2017 / Published: 23 November 2017
The nanocrystal 3C-SiC/ZrO2 bilayer films that could be used as the protective coatings of zirconium alloy fuel cladding were prepared on a single-crystal Si substrate. The corresponding nanocrystal 3C-SiC film and nanocrystal ZrO2 film were also dividedly synthesized. The microstructure of nanocrystal films was analyzed by grazing incidence X-ray diffraction (GIXRD) and cross-sectional transmission electron microscopy (TEM). The 3C-SiC film with less than 30 nm crystal size was synthesized by Plasma Enhanced Chemical Vapor Deposition (PECVD) and annealing. The corresponding formation mechanism of some impurities in SiC film was analyzed and discussed. An amorphous Zr layer about 600 nm in width was first deposited by magnetron sputtering and then oxidized to form a nanocrystal ZrO2 layer during the annealing process. The interface characteristics of 3C-SiC/ZrO2 bilayer films prepared by two different processes were obviously different. SiZr and SiO2 compounds were formed at the interface of 3C-SiC/ZrO2 bilayer films. A corrosion test of 3C-SiC/ZrO2 bilayer films was conducted to qualitatively analyze the surface corrosion resistance and the binding force of the interface. View Full-Text
Keywords: 3C-SiC/ZrO2 film; thin film; nanomaterials; PECVD 3C-SiC/ZrO2 film; thin film; nanomaterials; PECVD
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MDPI and ACS Style

Ye, C.; Ran, G.; Zhou, W.; Qu, Y.; Yan, X.; Cheng, Q.; Li, N. The Preparation and Microstructure of Nanocrystal 3C-SiC/ZrO2 Bilayer Films. Nanomaterials 2017, 7, 408.

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