Electrophysical properties of polymer composites penton-silver iodide system in 8-12 GHz frequency region

• Published in: Functional Materials
• Date: 2007
• Main Authors: Rokitsky, M.A., Gorbyk, P.P., Levandovsky, V.V., Makhno, S.M., Kondratenko, O.V., Shut, N.I.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2007
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/136474
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Electrophysical properties of polymer composites penton-silver iodide system in 8-12 GHz frequency region / M.A. Rokitsky, P.P. Gorbyk, V.V. Levandovsky, S.M. Makhno, O.V. Kondratenko, N.I. Shut // Functional Materials. — 2007. — Т. 14, № 1. — С. 125-129. — Бібліогр.: 9 назв. — англ.

The heat field influence on electrophysical properties of polymer composites of the penton — dispersed silver iodide (Agl) system at volume filling from 0 to 100 % have been studied in 8-12 GHz frequency range. It has been shown that both real (ξ') and imaginary (ξ") complex dielectric permittivity components below the temperature of Agl dielectric-ionic phase transition (Tc = 420 K) depend on the content of the system components, and the imaginary component depends also on the polymer supermolecular structure. After Agl transition into ionic state, a percolation transition is observed in concentration dependences at critical percolation threshold about 30 vol.% filler content and extreme maxima about C = 50%. The ξ' and ξ" values exceed almost in wice the corresponding Agl characteristics. The results are discussed within the frame structure model.