Evaluation of Current in Composites PVAL/Ceramics for Detection of Leakage Current Generated in Electrical Insulators
| Autor: | Ana Cristina S. Costa Jr., Thiago Werlley B. Silva, A.J.V. Andrade, Edson Guedes da Costa, Patrícia Costa Fernandes Menezes, Ana C. Costa |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Composite number Nanoparticle 02 engineering and technology 01 natural sciences Polyvinyl alcohol chemistry.chemical_compound 0103 physical sciences General Materials Science Ceramic Composite material Fourier transform infrared spectroscopy 010302 applied physics business.industry Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics Semiconductor chemistry Mechanics of Materials visual_art visual_art.visual_art_medium Current (fluid) 0210 nano-technology business Voltage |
| Zdroj: | Materials Science Forum. 869:308-313 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.869.308 |
| Popis: | This research aims to prepare composites of polyvinyl alcohol (PVAL) with ceramic nanoparticles loads (NPs) of Ti1.95Eu 0.05O2; ZnAl2O4 and Ni0.5Zn0.5Fe2O4 to evaluate the detection of leakage current generated in electrical insulator. The composites were prepared in the proportion of 6/1.5 g of the PVAL/ceramics and characterized by XRD, FTIR, SEM and measurements of the current as a function of applied voltage. The results show for the composites with Ti1.95Eu0.05O2 and ZnAl2O4 a homogeneous morphology, while the structure of the composite formed by Ni0.5Zn0.5Fe2O4 resulted in a heterogeneous and porous morphology. The determination of the current as a function of the applied voltage has shown that there is a dependence of morphology and the semiconductor characteristic of the load used and the best results are therefore assigned for the composite produced with the Ti1.95Eu0.05O2 load with homogeneous morphology and high current values as a function of the applied voltage. |
| Databáze: | OpenAIRE |
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