Nano-explosion synthesis of multi-component ceramic nano-composites |
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| Affiliation: | 1. National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki, 305-0047, Japan;2. Institute for Materials Science, NASU, 3, Krzhizhanivs’kogo Str., Kiev, 03680, Ukraine;1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, 30 College Road, Beijing 100083, China;2. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;1. Department of Nanobiotechnology, Institute of Nanobiology and Structural Biology of GCRC, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic;2. Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 11, 783 71 Olomouc, Czech Republic;1. School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;2. Zhejiang California International Nano Systems Institute, Hangzhou 310027, China;1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. Applied Science College, Harbin University of Science and Technology, Harbin 150080, China;3. School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Here we demonstrate a unique processing technique which is based on engineering multi-component ceramic nanopowders and composites with precise morphology by nano-explosive deagglomeration/calcination. Multiple nano-explosions of impregnated cyclotrimethylene trinitramine deagglomerate the nanopowder due to the highly energetic impacts of the blast waves, while the solid-solubility of one component into the other is enhanced by the extremely high local temperature generated during the nano-explosions. We applied this technique to produce nanosize agglomerate-free ceria–gadolinia solid solution powder with uniform morphology and an average aggregate size of 32 nm, and 8 mol% yttria-doped zirconia aggregates with an average size of 53 nm impregnated with platinum (2–14 nm). |
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