Fabrication and characterization of direct-written 3D TiO_2 woodpile electromagnetic bandgap structures |
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| Authors: | Li Ji-Jiao;Li Bo;Peng Qin-Mei;Zhou Ji;Li Long-Tu |
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| Abstract: | Three groups of three-dimensional(3D) TiO2 woodpile electromagnetic gap materials with tailed rheological properties were developed for direct-written fabrication. Appropriate amount of polyethyleneimine(PEI) dispersants allow the preparation of TiO2 inks with a high solid content of 42 vol.%, which enables them to flow through the nozzles easily.The inks exhibit pseudoplastic behavior. The measured microwave characteristics of the results agree well with simulations based on plane wave expansion(PWE). |
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| Keywords: | TiO woodpile structure direct writing |
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