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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Single phase 3D phononic band gap material
Franziska Warmuth1, Maximilian Wormser2, Carolin Körner1,3
1Joint Institute of Advanced Materials and Processes (ZMP) Fürth, Friedrich-Alexander University of Erlangen-Nuremberg, Dr.-Mack-Str. 81, 90762, Fürth, Germany.
Abstract:
Phononic band gap materials are capable of prohibiting the propagation of mechanical waves in certain frequency ranges. Band gaps are produced by combining different phases with different properties within one material. In this paper, we present a novel cellular material consisting of only one phase with a phononic band gap. Different phases are modelled by lattice structure design based on eigenmode analysis. Test samples are built from a titanium alloy using selective electron beam melting. For the first time, the predicted phononic band gaps via FEM simulation are experimentally verified. In addition, it is shown how the position and extension of the band gaps can be tuned by utilizing knowledge-based design.
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