Electrical and Thermal Studies on the Polyvinylchloride/Carbon Black Composites Induced by High Energy Ion Beam
| Autor: | Chaitali Gavade, N.L. Singh, Anjum Qureshi, D. K. Avasthi, A. N. Gulluoglu, Deodatta M. Phase, Dolly Singh |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Ion beam Scanning electron microscope Analytical chemistry Dielectric Carbon black Condensed Matter Physics Electronic Optical and Magnetic Materials Ion Differential scanning calorimetry Control and Systems Engineering Electrical resistivity and conductivity Materials Chemistry Ceramics and Composites Irradiation Electrical and Electronic Engineering Composite material |
| Zdroj: | Integrated Ferroelectrics. 117:85-96 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584587.2010.489429 |
| Popis: | Modification induced by energetic ion in polyvinylchloride (PVC)/carbon black (CB) composites was studied using impedance gain-phase analyzer, differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and atomic force microscopy (AFM). Different concentrations of CB were dispersed in PVC films. These films were irradiated with 140 MeV Ag11+ ions at the fluences of 1 × 1011 and 1 × 1012ions/cm2. The ac electrical conductivity and dielectric response were studied as a function of filler, frequency and ion fluence. It was found that ac electrical conductivity increases with increasing the percentage of CB, frequency and ion fluence. The observed enhancement in ac electrical conductivity is attributed to the increase in the number of conduction paths created by the carbon black contents in the composites to give a higher electrical conductivity. An increase in dielectric constant was observed with the ion fluence and also with the carbon black content, which is attributed to the interfacial ... |
| Databáze: | OpenAIRE |
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