Study on Microwave Absorbing of Tourmaline and Dravite/ZnO Complex Powders

Abstract:

The complex permittivity and permeability of Dravite, Elbaite, ZnO and Dravite/ZnO complex powder are analyzed in this paper. Within the frequency range of 2~18 GHz, the dielectric losses of these four materials are in the sequence of: 0 ≈ Dravite ≈Elbaite < ZnO < coated powder = 0.211. The complex powder's magnetic loss decreases gradually with the increase of frequency. The magnetic loss is between 0.05 and 0.15 at the frequency ranging from 2 to 6 GHz. The research has shown that Dravite/ZnO complex powder exhibits some microwave absorbing capability, which may widen the application of tourmaline in the field of environmental depollution.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 672-676
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.672
• Online since: June 2014
• Authors: Xiao Hui Zhang, Hong Wen Ma
• Keywords: Microwave Absorbing (MWA), Surface Coating, Tourmaline, Zing Oxide (ZnO)

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