Dielectric design of LDPE properties: With the help of double-core Si/SiO2 and Carbon Black
| Autor: | Frechette, M. F., Veillette, R., Trudeau, M., Pirondelli, A., Anh, T. Tran, Ghafarizadeh, B., David, E., El Khoury, D., Castellon, J., Arinero, R., FABIANI, DAVIDE |
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| Přispěvatelé: | Institut de Recherche d'Hydro-Québec [Varennes] (IREQ), University of Bologna, Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Groupe énergie et matériaux (GEM), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Composants à Nanostructure pour le moyen infrarouge (NANOMIR), Frechette, M.F., Veillette, R., Trudeau, M., Pirondelli, A., Fabiani, D., Anh, T. Tran, Ghafarizadeh, B., David, E., El-Khoury, D., Castellon, J., Arinero, R. |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Silicon
ilicon EELS Si-SiO2 Dielectric carbon black dielectric design amorphous silica insulating material low-density polyethylene dielectric storage capacity dielectric relaxation Powder Heating [SPI]Engineering Sciences [physics] Additive dielectric propertie ComputingMilieux_MISCELLANEOUS nanometric layer polyethylene insulation polarization Temperature measurement carbon Nanodielectric structure electrical charge movement LDPE propertie AC conductivity double core TEM ilicon compound Polyethylene nanocomposite Scanning electron microscopy |
| Zdroj: | 2016 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) 2016 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Oct 2016, Toronto, France. pp. 52-57, ⟨10.1109/CEIDP.2016.7785471⟩ |
| DOI: | 10.1109/CEIDP.2016.7785471⟩ |
| Popis: | Low-density Polyethylene (LDPE) was modified by using simultaneously 2 additives. Each additive had a specific attribute. Silicon was used. Using TEM with EELS, it was proved first that the passivated version constituted a double core consisting of Si surrounded by a nanometric layer of amorphous Silica (SiO2). Thus Si brought the possibility of an enlarged dielectric storage capacity with a barrier controlling the electrical charge movement (via SiO2). Silicon was used in conjunction with Carbon Black (CB) and produced, upon some conditions, enlarged dielectric storage yet with intempestive conversion to a conducting state. At low voltage, LDPE containing 5 wt% CB and 3% or 0.25% Si remained insulating materials. During breakdown conditions with a 2 kV/s rise, only the composite containing 0.25 wt% CB and 3 wt% Si exhibited insulating conditions. These results draw attention to the importance of performing material system evaluation under dynamical conditions. |
| Databáze: | OpenAIRE |
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