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Development of ZrO2‐MgO nanocomposite powders by the modified sol‐gel method
Authors:Fatemeh Davar  Nasrin Shayan  Akbar Hojjati‐Najafabadi  Vahid Sabaghi  Saeed Hasani
Affiliation:1. Department of Chemistry, Isfahan University of Technology, Isfahan, Iran;2. Department of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Isfahan, Iran;3. Department of Mining and Metallurgical Engineering, Yazd University, Yazd, Iran
Abstract:The ZrO2‐MgO nanocomposites were synthesized using a new sol‐gel method with sucrose and tartaric acid as a gel agent. The samples were characterized by thermal analysis (TG/DTA), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), energy‐dispersive X‐ray mapping (EDX mapping), and Ultraviolet‐visible spectroscopy (UV‐vis). The results showed that the cubic phase of ZrO2‐MgO was formed in the presence of both gel agents. The average particle size of the samples synthesized with sucrose was lower (30 nm) than that of tartaric acid (50 nm). Finally, the formation mechanism and the optical properties of zirconia‐magnesia have been discussed.
Keywords:nanostructured ceramics  sol‐gel  zirconia‐magnesia
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