Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles
Abstract The advancement of industrial technology has led to power modules facing challenges such as elevated temperatures, high voltages, and increased frequencies. The conventional epoxy resin (Ep) fails to satisfy the demands of high voltage and superior insulation. This study involved the synthe...
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Nature Portfolio
2025-07-01
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| Online Access: | https://doi.org/10.1038/s41598-025-09151-3 |
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| author | Muhammad Zeeshan Khan Farooq Aslam Faisal Alsaif |
| author_facet | Muhammad Zeeshan Khan Farooq Aslam Faisal Alsaif |
| author_sort | Muhammad Zeeshan Khan |
| collection | DOAJ |
| description | Abstract The advancement of industrial technology has led to power modules facing challenges such as elevated temperatures, high voltages, and increased frequencies. The conventional epoxy resin (Ep) fails to satisfy the demands of high voltage and superior insulation. This study involved the synthesis of Ep resin/ AgNbO3 nanocomposites aimed at addressing insulating flaws. AgNbO3 was modified using the silane coupling agent KH550. The changes in the molecular chain after incorporating of unmodified and modified AgNbO3 were evaluated through FTIR analysis. The SEM results indicate that following modification, AgNbO3 particles are evenly distributed within the Ep resin matrix, demonstrating a lack of agglomeration. From thermal conductivity result it was found that modification of AgNbO3 shows an enhancement of thermal conductivity, attributed to the reduction of interfacial phonon scattering and thermal resistance within the Ep resin. Additionally, the dielectric constant and dielectric loss in composites are greatly impacted by the addition of AgNbO3. According to the DC breakdown strength result, the addition of modified AgNbO3 enhanced the process and caused deeper traps to form inside the bulk matrix. The distribution of trap energy levels is determined by Thermal Stimulated Depolarization Current (TSDC), which indicates that the incorporation of AgNbO3 results in an increase in trap energy levels. Furthermore, the incorporation of 1 wt% AgNbO3 particle into Ep resin has been observed to enhance the energy level of deep traps. After AgNbO3 was added, DC Flashover in both air and vacuum significantly increased in comparison to pure Ep resin. |
| format | Article |
| id | doaj-art-659c3219c8b2491aa3e0729c9ad8646e |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-659c3219c8b2491aa3e0729c9ad8646e2025-08-20T03:37:23ZengNature PortfolioScientific Reports2045-23222025-07-0115111510.1038/s41598-025-09151-3Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particlesMuhammad Zeeshan Khan0Farooq Aslam1Faisal Alsaif2German Institute of Engineering, Chongqing College of Mobile CommunicationDepartment of Electrical and Electronics Engineering, Changzhou Institute of TechnologyDepartment of Electrical Engineering, College of Engineering, King Saud UniversityAbstract The advancement of industrial technology has led to power modules facing challenges such as elevated temperatures, high voltages, and increased frequencies. The conventional epoxy resin (Ep) fails to satisfy the demands of high voltage and superior insulation. This study involved the synthesis of Ep resin/ AgNbO3 nanocomposites aimed at addressing insulating flaws. AgNbO3 was modified using the silane coupling agent KH550. The changes in the molecular chain after incorporating of unmodified and modified AgNbO3 were evaluated through FTIR analysis. The SEM results indicate that following modification, AgNbO3 particles are evenly distributed within the Ep resin matrix, demonstrating a lack of agglomeration. From thermal conductivity result it was found that modification of AgNbO3 shows an enhancement of thermal conductivity, attributed to the reduction of interfacial phonon scattering and thermal resistance within the Ep resin. Additionally, the dielectric constant and dielectric loss in composites are greatly impacted by the addition of AgNbO3. According to the DC breakdown strength result, the addition of modified AgNbO3 enhanced the process and caused deeper traps to form inside the bulk matrix. The distribution of trap energy levels is determined by Thermal Stimulated Depolarization Current (TSDC), which indicates that the incorporation of AgNbO3 results in an increase in trap energy levels. Furthermore, the incorporation of 1 wt% AgNbO3 particle into Ep resin has been observed to enhance the energy level of deep traps. After AgNbO3 was added, DC Flashover in both air and vacuum significantly increased in comparison to pure Ep resin.https://doi.org/10.1038/s41598-025-09151-3Niobium silver trioxide (AgNbO3)Thermal stimulated depolarization current (TSDC)Epoxy resin (EP)Trap energy |
| spellingShingle | Muhammad Zeeshan Khan Farooq Aslam Faisal Alsaif Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles Scientific Reports Niobium silver trioxide (AgNbO3) Thermal stimulated depolarization current (TSDC) Epoxy resin (EP) Trap energy |
| title | Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles |
| title_full | Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles |
| title_fullStr | Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles |
| title_full_unstemmed | Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles |
| title_short | Enhancing the dielectric characteristics and DC flashover of epoxy resin composites by surface modification of AgNbO3 nano particles |
| title_sort | enhancing the dielectric characteristics and dc flashover of epoxy resin composites by surface modification of agnbo3 nano particles |
| topic | Niobium silver trioxide (AgNbO3) Thermal stimulated depolarization current (TSDC) Epoxy resin (EP) Trap energy |
| url | https://doi.org/10.1038/s41598-025-09151-3 |
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