Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling
Bulk natural ferrites based in iron sands were synthesized at room temperature by high energy ball milling. The reduced particle sizes of the ferrites were milled at 100 rpm at selected time intervals of 0, 2, 4, and 6 h. The as-milled products were then characterized by x-ray diffraction (XRD), a v...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/aa68b4 |
| _version_ | 1797747134518263808 |
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| author | X Mashuri W Lestari X Triwikantoro X Darminto |
| author_facet | X Mashuri W Lestari X Triwikantoro X Darminto |
| author_sort | X Mashuri |
| collection | DOAJ |
| description | Bulk natural ferrites based in iron sands were synthesized at room temperature by high energy ball milling. The reduced particle sizes of the ferrites were milled at 100 rpm at selected time intervals of 0, 2, 4, and 6 h. The as-milled products were then characterized by x-ray diffraction (XRD), a vibrating sample magnetometer (VSM) and a vector network analyzer (VNA). The results showed that the magnetite phase contents, their mean size and the saturated magnetization of the natural ferrites were about 95 nm and 36–.50 emu g ^−1 without a new phase. The microwave absorbing characteristics were investigated by measuring the absorption of electromagnetic waves in the frequency range 7–12 GHz. The maximum reflection loss ( RL _m ) and matching frequency ( f _m ) for the best process of milling (100 rpm, 6 h) of natural ferrites were RL _m1 = −7.28 dB in f _m1 = 7.50 GHz (▵ f = 1.50 GHz) and RL _m2 = −4.31 dB in f _m2 =10.28 GHz (▵ f = 2.57 GHz). These results suggest that synthesized natural ferrites can be employed as effective microwave absorbers in various devices. |
| first_indexed | 2024-03-12T15:47:46Z |
| format | Article |
| id | doaj.art-42254dbf02e94994bf4e935a1f6903d3 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:46Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-42254dbf02e94994bf4e935a1f6903d32023-08-09T15:21:03ZengIOP PublishingMaterials Research Express2053-15912018-01-015101400310.1088/2053-1591/aa68b4Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy millingX Mashuri0W Lestari1X Triwikantoro2X Darminto3Advanced Materials Research Group, Department of Physics, Faculty of Sciences, Institut Teknologi Sepuluh Nopember (ITS) , Kampus ITS Sukolilo, Surabaya 60111, IndonesiaAdvanced Materials Research Group, Department of Physics, Faculty of Sciences, Institut Teknologi Sepuluh Nopember (ITS) , Kampus ITS Sukolilo, Surabaya 60111, IndonesiaAdvanced Materials Research Group, Department of Physics, Faculty of Sciences, Institut Teknologi Sepuluh Nopember (ITS) , Kampus ITS Sukolilo, Surabaya 60111, IndonesiaAdvanced Materials Research Group, Department of Physics, Faculty of Sciences, Institut Teknologi Sepuluh Nopember (ITS) , Kampus ITS Sukolilo, Surabaya 60111, IndonesiaBulk natural ferrites based in iron sands were synthesized at room temperature by high energy ball milling. The reduced particle sizes of the ferrites were milled at 100 rpm at selected time intervals of 0, 2, 4, and 6 h. The as-milled products were then characterized by x-ray diffraction (XRD), a vibrating sample magnetometer (VSM) and a vector network analyzer (VNA). The results showed that the magnetite phase contents, their mean size and the saturated magnetization of the natural ferrites were about 95 nm and 36–.50 emu g ^−1 without a new phase. The microwave absorbing characteristics were investigated by measuring the absorption of electromagnetic waves in the frequency range 7–12 GHz. The maximum reflection loss ( RL _m ) and matching frequency ( f _m ) for the best process of milling (100 rpm, 6 h) of natural ferrites were RL _m1 = −7.28 dB in f _m1 = 7.50 GHz (▵ f = 1.50 GHz) and RL _m2 = −4.31 dB in f _m2 =10.28 GHz (▵ f = 2.57 GHz). These results suggest that synthesized natural ferrites can be employed as effective microwave absorbers in various devices.https://doi.org/10.1088/2053-1591/aa68b4natural ferritemicrowave absorbingiron sandshigh energy milling |
| spellingShingle | X Mashuri W Lestari X Triwikantoro X Darminto Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling Materials Research Express natural ferrite microwave absorbing iron sands high energy milling |
| title | Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling |
| title_full | Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling |
| title_fullStr | Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling |
| title_full_unstemmed | Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling |
| title_short | Preparation and microwave absorbing properties in the X-band of natural ferrites from iron sands by high energy milling |
| title_sort | preparation and microwave absorbing properties in the x band of natural ferrites from iron sands by high energy milling |
| topic | natural ferrite microwave absorbing iron sands high energy milling |
| url | https://doi.org/10.1088/2053-1591/aa68b4 |
| work_keys_str_mv | AT xmashuri preparationandmicrowaveabsorbingpropertiesinthexbandofnaturalferritesfromironsandsbyhighenergymilling AT wlestari preparationandmicrowaveabsorbingpropertiesinthexbandofnaturalferritesfromironsandsbyhighenergymilling AT xtriwikantoro preparationandmicrowaveabsorbingpropertiesinthexbandofnaturalferritesfromironsandsbyhighenergymilling AT xdarminto preparationandmicrowaveabsorbingpropertiesinthexbandofnaturalferritesfromironsandsbyhighenergymilling |