Title: Dielectric properties of Bi-based superconductors nanoparticles filled natural rubber/low density Polyethelene nanocomposites

Authors: A.A. Al-Ghamdi, S. Al-Heniti, F. Salman, N. Abdel Aal, E.H. El-Mossalamy, Farid El-Tantawy

Addresses: Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, P.O. 80203, Jeddah 21569, Kingdom of Saudi Arabia. ' Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, P.O. 80203, Jeddah 21569, Kingdom of Saudi Arabia. ' Department of Physics, Faculty of Science for Girls in Dammam, King Fesal University, Dammam, Kingdom of Saudi Arabia. ' Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, Egypt. ' Chemistry Department, Faculty of Science, King Abdul Aziz University, P.O. Box 80203, Jeddah 21589, Kingdom of Saudi Arabia. ' Physics Department, Faculty of Science, Suez Canal University, Ismailia, Egypt; Faculty of Education for Girls at Balgarn, King Khalid University, Sabt Al-Alaya, Kingdom of Saudi Arabia

Abstract: A new nano conducting polymer composite containing natural rubber (NR) filled with Bi-based superconductor (BSCCO) nanoparticles was successfully fabricated using a traditional milling rubber technique. The scanning and transmission electron microscopic (SEM, TEM) studies provide information on quality of these samples and the uniform distribution of BSCCO particles within NR matrix. The electric conductivity and dielectric measurements have been carried out in the frequency range of 50 Hz-1 MHz and temperature range of 298-428 K. The measured impedance data were analysed on complex plane and the dc (bulk) as well as ac conductivity were obtained. Studies of dielectric constant as a function of frequency at different temperatures revealed that the compounds do not have any dielectric anomaly in the studied frequency and temperature range. The enhancement of the dielectric properties of nanocomposites makes it feasible as co-fired dielectric component devices.

Keywords: rubber matrix; conducting filler nanoparticles; nanocomposites; microstructure; dielectric properties; nanotechnology; polyethelene superconductors; natural rubber.

DOI: 10.1504/IJNP.2009.028781

International Journal of Nanoparticles, 2009 Vol.2 No.1/2/3/4/5/6, pp.458 -466

Published online: 30 Sep 2009 *

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