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Fabrication of Electromagnetic Crystals by Extrusion Freeforming
  • Xuesong Lu, University of London
  • Yoonjae Lee, University of London
  • Shoufeng Yang, University of London
  • Yang Hao, University College London
  • Rick Ubic, Boise State University
  • Julian R. G. Evans, University College London
  • Clive G. Parini, University of London
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Electromagnetic crystals have potential applications from microwave to optical frequencies. At present, several methods can be applied to fabricate these structures, for example, stereolithography and wafer etching. In this work, extrusion freeforming, one of the linear solid freeforming methods, was used to fabricate electromagnetic crystals and the forming, drying, debinding and sintering stages are described. This method allows structures to be designed on a computer file and rendered directly as physical objects so that prototypes can be created quickly. A wide range of ceramic powders can be used so that dielectric constant and loss factor can be tailored. Structures with deliberate defects such as missing filaments or circular structures can be made.
Citation Information
Xuesong Lu, Yoonjae Lee, Shoufeng Yang, Yang Hao, et al.. "Fabrication of Electromagnetic Crystals by Extrusion Freeforming" Metamaterials (2008)
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