Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets
This study explores the impact of binder types—polyvinyl alcohol (PVA) and silicone rubber (SR)—on the physical, magnetic, and mechanical properties of barium hexaferrite (BaFe12O19), synthesized via mechanical alloying and sintered at 1100°C. SEM-EDX confirmed the formation of BaFe12O19 with an av...
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Jurusan Fisika, FMIPA Universitas Andalas
2025-05-01
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| Series: | JIF (Jurnal Ilmu Fisika) |
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| Online Access: | https://jif.fmipa.unand.ac.id/index.php/jif/article/view/716 |
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| author | Wahyu Solafide Sipahutar Gustya Salma Putrie Faiza Armalia Putri Abi Farhan Muhamad Hafid |
| author_facet | Wahyu Solafide Sipahutar Gustya Salma Putrie Faiza Armalia Putri Abi Farhan Muhamad Hafid |
| author_sort | Wahyu Solafide Sipahutar |
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This study explores the impact of binder types—polyvinyl alcohol (PVA) and silicone rubber (SR)—on the physical, magnetic, and mechanical properties of barium hexaferrite (BaFe12O19), synthesized via mechanical alloying and sintered at 1100°C. SEM-EDX confirmed the formation of BaFe12O19 with an average particle size of around 0.7 µm. VSM results showed a saturation magnetization (Ms) of 71.17 emu/g, remanent magnetization (Mr) of 47.8 emu/g, and coercivity (Hc) of 0.33 T. The addition of PVA reduced density (3.13–3.07 g/cm³), increased porosity (17.72%–18.47%), and decreased magnetization (0.93–0.80 mT). In contrast, SR enhanced densification, leading to higher density (3.65–3.57 g/cm³), lower porosity (6.95%–7.51%), and significantly higher hardness (232.9–438.92 HV). SR also improved mechanical strength, while PVA proved more effective in reducing shrinkage and improving magnetization. These results underscore the significant role of binder type and concentration in optimizing the properties of sintered barium hexaferrite, with SR excelling in mechanical strength and PVA in magnetization.
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| format | Article |
| id | doaj-art-99c8707ea65747ffb878efbead202b37 |
| institution | OA Journals |
| issn | 1979-4657 2614-7386 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Jurusan Fisika, FMIPA Universitas Andalas |
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| series | JIF (Jurnal Ilmu Fisika) |
| spelling | doaj-art-99c8707ea65747ffb878efbead202b372025-08-20T02:01:05ZengJurusan Fisika, FMIPA Universitas AndalasJIF (Jurnal Ilmu Fisika)1979-46572614-73862025-05-0117210.25077/jif.17.2.135-145.2025Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered MagnetsWahyu Solafide Sipahutar0https://orcid.org/0000-0002-5387-5885Gustya Salma Putrie1Faiza Armalia Putri2Abi Farhan3Muhamad Hafid4The Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan, 35365The Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan, 35365The Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan, 35365The Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan, 35365The Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan, 35365 This study explores the impact of binder types—polyvinyl alcohol (PVA) and silicone rubber (SR)—on the physical, magnetic, and mechanical properties of barium hexaferrite (BaFe12O19), synthesized via mechanical alloying and sintered at 1100°C. SEM-EDX confirmed the formation of BaFe12O19 with an average particle size of around 0.7 µm. VSM results showed a saturation magnetization (Ms) of 71.17 emu/g, remanent magnetization (Mr) of 47.8 emu/g, and coercivity (Hc) of 0.33 T. The addition of PVA reduced density (3.13–3.07 g/cm³), increased porosity (17.72%–18.47%), and decreased magnetization (0.93–0.80 mT). In contrast, SR enhanced densification, leading to higher density (3.65–3.57 g/cm³), lower porosity (6.95%–7.51%), and significantly higher hardness (232.9–438.92 HV). SR also improved mechanical strength, while PVA proved more effective in reducing shrinkage and improving magnetization. These results underscore the significant role of binder type and concentration in optimizing the properties of sintered barium hexaferrite, with SR excelling in mechanical strength and PVA in magnetization. https://jif.fmipa.unand.ac.id/index.php/jif/article/view/716barium hexaferritepolyvinyl alcoholsilicone rubbermagnetic propertiessintering |
| spellingShingle | Wahyu Solafide Sipahutar Gustya Salma Putrie Faiza Armalia Putri Abi Farhan Muhamad Hafid Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets JIF (Jurnal Ilmu Fisika) barium hexaferrite polyvinyl alcohol silicone rubber magnetic properties sintering |
| title | Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets |
| title_full | Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets |
| title_fullStr | Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets |
| title_full_unstemmed | Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets |
| title_short | Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets |
| title_sort | binder influence on barium hexaferrite comparative analysis of pva and silicone rubber in sintered magnets |
| topic | barium hexaferrite polyvinyl alcohol silicone rubber magnetic properties sintering |
| url | https://jif.fmipa.unand.ac.id/index.php/jif/article/view/716 |
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