naa a22 4500 510801080 CHVBK 20180411083355.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11664-013-2512-4 doi (NATIONALLICENCE)springer-10.1007/s11664-013-2512-4 Electrical Properties and Scaling Behavior of MWCNT-Soda Lime Silica Glass [Elektronische Daten] [M. Shaaban, A. Ali] Multiwall carbon nanotube (MWCNT)-soda lime silica glass composites were prepared by the direct mixing method. The dielectric properties of the composites were studied to explore the effect of MWCNT content on the conduction and relaxation mechanisms in such composites. A gradual increase in the direct-current (dc) conductivity σ dc was observed up to 7wt.% MWCNT, with a sharp increase in σ dc for the 10wt.% sample. Such behavior was related to the increase of internanotube connections. The correlation between σ dc and the nanotube loading p followed the fluctuation-induced tunneling (FIT) model, which can be described by the equation, lnσ dc∝p −1/3. The alternating-current (ac) conductivity exhibited two distinct regimes: (i) a low-frequency plateau and (ii) a high-frequency dispersion regime. The switchover frequency between the two regimes indicated the conductivity relaxation. The onset frequency shifted to higher frequencies with increasing MWCNT content, which was related to connectivity improvement. Investigating the universality of the ac conductivity of these composites, it was found that the data obtained followed a Rolling scaling model. The obtained master curve revealed that the conductivity relaxation can be considered a temperature-independent process. The frequency dependence of the ac conductivity dielectric constant followed the intercluster polarization model. TMS, 2013 Multiwall carbon nanotubes nationallicence soda lime silica glass nationallicence MWCNT-glass composites nationallicence electrical properties and scaling behavior nationallicence Shaaban M. Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt aut Ali A. Glass Research Department, National Research Centre, Dokki, Cairo, Egypt aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/6(2013-06-01), 1047-1054 0361-5235 42:6<1047 2013 42 11664 https://doi.org/10.1007/s11664-013-2512-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-013-2512-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shaaban M. Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt aut NATIONALLICENCE 700 1- Ali A. Glass Research Department, National Research Centre, Dokki, Cairo, Egypt aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/6(2013-06-01), 1047-1054 0361-5235 42:6<1047 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer