Effect of magnetic impurities in based on shungite electromagnetic absorbers on its shielding properties

Author

Pukhir, H.A. ; Mahmoud, M.Sh.

Author_Institution

Dept. of Inf. & Radioelectron., Belarussian State Univ., Minsk, Belarus

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

The effect of ferromagnetic impurities in electromagnetic based shungite absorbers is studied. The presence of the particles magnetic powder in composite structure influences on attenuation and reflection characteristics of shielding material has been established. It is found that exact quantity of magnetic inclusions in relation to the shungite powder are principal for reflection coefficient and has effect on electromagnetic radiation attenuation. The compound with powders of shungite and nickel-zinc ferrite in different percentages has investigated. The dependence of the shielding characteristics of the composite is shown. The use of these composite materials for creation of electromagnetic shielding constructions are considered.

Keywords

composite materials; electromagnetic wave absorption; electromagnetic wave reflection; ferrites; ferromagnetic materials; magnetic impurities; magnetic particles; magnetic shielding; nickel compounds; zinc compounds; NiZnFe₂O₄; attenuation characteristics; composite structure; electromagnetic based shungite absorbers; electromagnetic radiation attenuation; electromagnetic shielding; ferromagnetic impurities; magnetic inclusions; nickel-zinc ferrite; particles magnetic powder; reflection characteristics; reflection coefficient; shielding material; shielding properties; shungite powder; Attenuation; Electromagnetic radiation; Magnetic noise; Magnetic shielding; Materials; Powders; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6051392

Filename

6051392