Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field
High magnetic field causes premature failure of insulation. In order to improve the breakdown strength of silicone rubber (SiR), different filler contents of ferroferric oxide (Fe3O4) nanoparticles were added. Experimental results show that 1 wt% addition amount of ferromagnetic nanoparti...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10101806/ |
| _version_ | 1797839173920489472 |
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| author | Mingyang Wang Yao Zhang Congzhao Xue Boxue Du Yunqi Xing |
| author_facet | Mingyang Wang Yao Zhang Congzhao Xue Boxue Du Yunqi Xing |
| author_sort | Mingyang Wang |
| collection | DOAJ |
| description | High magnetic field causes premature failure of insulation. In order to improve the breakdown strength of silicone rubber (SiR), different filler contents of ferroferric oxide (Fe3O4) nanoparticles were added. Experimental results show that 1 wt% addition amount of ferromagnetic nanoparticles is beneficial to improve the AC breakdown strength of SiR by 5.40% in 12 T magnetic field due to their ability to regulate dielectric polarization and partial discharge (PD) behavior, resulting from the relative higher permittivity and permeability of Fe3O4. Magnetization of Fe3O4 nanoparticles results in 3.33% decrease of DC breakdown strength with 2 wt% filler content in 12 T magnetic field. Fluorination treatment was carried out and proved to be able to improve the DC breakdown strength of SiR/Fe3O4 nanocomposites by 8.84% in 12 T magnetic field with the treatment time being 5 minutes, resulting from the regulation of surface traps. Fluorination treatment weakened the magnetism of nanoparticles, weakening their regulation on insulation polarization and PD. Adding an appropriate amount of ferromagnetic nanoparticles before the fluorination of SiR/Fe3O4 nanocomposites can improve the AC and DC breakdown strength by 0.64% and 8.81% respectively at the same time in high magnetic field. |
| first_indexed | 2024-04-09T15:53:50Z |
| format | Article |
| id | doaj.art-3e29ae599b8d451f9783410d209e9da9 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-09T15:53:50Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-3e29ae599b8d451f9783410d209e9da92023-04-25T23:01:02ZengIEEEIEEE Access2169-35362023-01-0111371233713010.1109/ACCESS.2023.326698410101806Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic FieldMingyang Wang0https://orcid.org/0000-0003-2634-2116Yao Zhang1Congzhao Xue2Boxue Du3Yunqi Xing4https://orcid.org/0000-0002-4000-2399State Grid Tianjin High Voltage Company, Tianjin, ChinaState Grid Tianjin High Voltage Company, Tianjin, ChinaState Grid Tianjin High Voltage Company, Tianjin, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin, ChinaKey Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, ChinaHigh magnetic field causes premature failure of insulation. In order to improve the breakdown strength of silicone rubber (SiR), different filler contents of ferroferric oxide (Fe3O4) nanoparticles were added. Experimental results show that 1 wt% addition amount of ferromagnetic nanoparticles is beneficial to improve the AC breakdown strength of SiR by 5.40% in 12 T magnetic field due to their ability to regulate dielectric polarization and partial discharge (PD) behavior, resulting from the relative higher permittivity and permeability of Fe3O4. Magnetization of Fe3O4 nanoparticles results in 3.33% decrease of DC breakdown strength with 2 wt% filler content in 12 T magnetic field. Fluorination treatment was carried out and proved to be able to improve the DC breakdown strength of SiR/Fe3O4 nanocomposites by 8.84% in 12 T magnetic field with the treatment time being 5 minutes, resulting from the regulation of surface traps. Fluorination treatment weakened the magnetism of nanoparticles, weakening their regulation on insulation polarization and PD. Adding an appropriate amount of ferromagnetic nanoparticles before the fluorination of SiR/Fe3O4 nanocomposites can improve the AC and DC breakdown strength by 0.64% and 8.81% respectively at the same time in high magnetic field.https://ieeexplore.ieee.org/document/10101806/High magnetic fieldnanocompositesfluorination treatmentpolarizationinsulation breakdown |
| spellingShingle | Mingyang Wang Yao Zhang Congzhao Xue Boxue Du Yunqi Xing Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field IEEE Access High magnetic field nanocomposites fluorination treatment polarization insulation breakdown |
| title | Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field |
| title_full | Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field |
| title_fullStr | Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field |
| title_full_unstemmed | Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field |
| title_short | Effects of Ferromagnetic Nanoparticles and Fluorination on Breakdown of SiR/Fe<sub>3</sub> O<sub>4</sub> Nanocomposites in High Magnetic Field |
| title_sort | effects of ferromagnetic nanoparticles and fluorination on breakdown of sir fe sub 3 sub o sub 4 sub nanocomposites in high magnetic field |
| topic | High magnetic field nanocomposites fluorination treatment polarization insulation breakdown |
| url | https://ieeexplore.ieee.org/document/10101806/ |
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