Electromagnetic absorption behaviour of ferrite loaded three phase carbon fabric composites
» Autor: Krishnasamy Jagatheesan, Alagirusamy Ramasamy, Apurba Das and Ananjan Basu
» Referencia: Krishnasamy Jagatheesan <em>et al</em> 2018 <em>Smart Mater. Struct.</em> <b>27</b> 025004
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This article investigates the electromagnetic absorption behaviours of carbon helical yarn fabric
reinforced composites and manganeseâ??zinc (Mnâ??Zn) ferrite particles loaded 3 phase fabric composites.
A carbon helical yarn having stainless steel core was prepared and made into single jersey knitted
fabric. The composite was prepared by sandwiching a fabric with polypropylene films and thermal
pressed. The absorption values of helical yarn fabric composite was observed to be less in the C
band region (4â??8 GHz). For improving the absorption coefficients of composite, Mnâ??Zn ferrite
particles were dispersed in the polypropylene (PP) composite. The ferrite loaded PP composites
exhibited better permittivity and permeability values, hence the absorption loss of the composite
was improved. The helical yarn fabric reinforced with Mnâ??Zn ferrite/PP composite showed larger
absorption coefficients than virgin PP/fabric composite. The change in thermal stability and
particle size distribution i...