Abstract
The increasing use of technology in our everyday environment has led to the ubiquitous presence of electromagnetic fields. Example of electromagnetic sources range from domestic electricity cables and high frequency sources such as radio and television transmitters or cellular phone network stations to visible and ultraviolet light. From this unprecedented situation arise at least two main problems which are waiting to be solved: the safety of information transmissions and electronic
devices proper working one a side and on the other hand the biological protection against the increasing level of electromagnetic fields radiated from such a large variety of sources. The paper presents the different composite materials, produced in rigid or flexible form, with potential applications as electromagnetic shields, in range of 0.8 – 3 GHz, with a medium attenuation of ca. 20 dB. The materials are prepared through Powder Metallurgy ways as carbon/ceramic, recycled
pyrite ashes/polymeric composites.
Keywords
Electromagnetic protection, Composite material, Powder metallurgy route.
Citation
W. KAPPEL, A. BARA, C. BANCIU, M. M. CODESCU, C. MORARI, E. A. PATROI, E. MANTA, Composites materials with applications in electromagnetic protection, Optoelectronics and Advanced Materials - Rapid Communications, 4, 12, December 2010, pp.2097-2102 (2010).
Submitted at: Nov. 1, 2010
Accepted at: Nov. 29, 2010