Déborah dos S. Gomes, Maria O. G. Ferreira, Bianca V. Sousa, Lisiane N. L. Santana, Gelmires. A. Neves, Romualdo R. Menezes
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Production of 3D ZrO2 nanofibrous structures by solution blow spinning
Zirconia nanofibers are of great technological and economic interest with various potential applications areas, such as thermal barriers, sensors, catalysis, and energy generation. Thus, this study aims to develop a non-sol-gel route for the production of 3D nanofibrous structures of zirconia, using solution blow spinning (SBS) technique. Precursor solutions were prepared using zirconium acetate in acetic acid solution and polyvinylpyrrolidone (PVP) was used as spinning aid polymer. 3D aerogel structures were produced by SBS. The influence of calcination temperature on phase evolution and fibers morphology was evaluated in the range of 500°C to 1000°C. Initially tetragonal phase was the stable structure, with the rise in temperature zirconia fibers underwent a transition to monoclinic phase. The average diameters ranged from 111 ± 38 nm to 458 ± 183 nm with temperature rise, but in all temperature aerogel structural integrity was observed. Therefore, a simplified non-sol-gel route using SBS proved efficient in producing 3D nanofibrous zirconia aerogel structures with potential application in several technological areas.
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The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
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