Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications
With the rapid growth of telecommunications, electromagnetic pollution and interference (EMI) have become critical challenges. This study developed barium hexaferrite-based nanocomposites doped with Ti, Co, Mn, and Ni to enhance EMI shielding capabilities. The nanocomposites (BaFe12O19 and the modi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/117690/ http://psasir.upm.edu.my/id/eprint/117690/1/117690.pdf |
| _version_ | 1848867314923995136 |
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| author | Katibi, Kamil Kayode Azis, Rabaah Syahidah Chen, Hongxu Ibrahim, Garba Shitu Ismail, Ismayadi Muhammad, Farah Diana Chan, Kar Tim Mohamed Nafis, Nur Biha |
| author_facet | Katibi, Kamil Kayode Azis, Rabaah Syahidah Chen, Hongxu Ibrahim, Garba Shitu Ismail, Ismayadi Muhammad, Farah Diana Chan, Kar Tim Mohamed Nafis, Nur Biha |
| author_sort | Katibi, Kamil Kayode |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | With the rapid growth of telecommunications, electromagnetic pollution and interference (EMI) have become critical challenges. This study developed barium hexaferrite-based nanocomposites doped with Ti, Co, Mn, and Ni to enhance EMI shielding capabilities. The nanocomposites (BaFe12O19 and the modified BaTiCoMn0.25Ni0.25Fe10O19) were synthesized using mechanical milling and thermal processing. Advanced analytical techniques such as x-ray diffraction, scanning and transmission electron microscopy, and vector network analysis confirmed the successful incorporation of dopants and revealed remarkable improvements. The BaTiCoMn0.25Ni0.25Fe10O19 variant exhibited enhanced magnetic properties with a coercivity of 308.9 Oe and magnetization of 65.9 emu/g, surpassing BaFe12O19. The optical band gap was increased to 2.3 eV, suitable for high-energy applications. The nanocomposite demonstrated superior EMI shielding, achieving a reflection loss of − 25.0 dB at 10.5 GHz and shielding effectiveness up to − 45.0 dB in the X-band (8.0–12.0 GHz), making it highly efficient for advanced EMI shielding in electronics and telecommunications. |
| first_indexed | 2025-11-15T14:34:32Z |
| format | Article |
| id | upm-117690 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:34:32Z |
| publishDate | 2025 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1176902025-06-11T03:28:22Z http://psasir.upm.edu.my/id/eprint/117690/ Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications Katibi, Kamil Kayode Azis, Rabaah Syahidah Chen, Hongxu Ibrahim, Garba Shitu Ismail, Ismayadi Muhammad, Farah Diana Chan, Kar Tim Mohamed Nafis, Nur Biha With the rapid growth of telecommunications, electromagnetic pollution and interference (EMI) have become critical challenges. This study developed barium hexaferrite-based nanocomposites doped with Ti, Co, Mn, and Ni to enhance EMI shielding capabilities. The nanocomposites (BaFe12O19 and the modified BaTiCoMn0.25Ni0.25Fe10O19) were synthesized using mechanical milling and thermal processing. Advanced analytical techniques such as x-ray diffraction, scanning and transmission electron microscopy, and vector network analysis confirmed the successful incorporation of dopants and revealed remarkable improvements. The BaTiCoMn0.25Ni0.25Fe10O19 variant exhibited enhanced magnetic properties with a coercivity of 308.9 Oe and magnetization of 65.9 emu/g, surpassing BaFe12O19. The optical band gap was increased to 2.3 eV, suitable for high-energy applications. The nanocomposite demonstrated superior EMI shielding, achieving a reflection loss of − 25.0 dB at 10.5 GHz and shielding effectiveness up to − 45.0 dB in the X-band (8.0–12.0 GHz), making it highly efficient for advanced EMI shielding in electronics and telecommunications. Springer 2025-04-25 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/117690/1/117690.pdf Katibi, Kamil Kayode and Azis, Rabaah Syahidah and Chen, Hongxu and Ibrahim, Garba Shitu and Ismail, Ismayadi and Muhammad, Farah Diana and Chan, Kar Tim and Mohamed Nafis, Nur Biha (2025) Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications. Journal of Electronic Materials, 54. pp. 4931-4953. ISSN 0361-5235; eISSN: 1543-186X https://link.springer.com/article/10.1007/s11664-025-11931-6?error=cookies_not_supported&code=f385175b-54d0-4f10-9a51-071714867b12 10.1007/s11664-025-11931-6 |
| spellingShingle | Katibi, Kamil Kayode Azis, Rabaah Syahidah Chen, Hongxu Ibrahim, Garba Shitu Ismail, Ismayadi Muhammad, Farah Diana Chan, Kar Tim Mohamed Nafis, Nur Biha Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title | Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title_full | Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title_fullStr | Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title_full_unstemmed | Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title_short | Magnetic, morphological, optical, and EMI shielding assessment of Ti, Co, Mn, and Ni‑doped barium hexaferrite nanocomposites for X‑band applications |
| title_sort | magnetic, morphological, optical, and emi shielding assessment of ti, co, mn, and ni‑doped barium hexaferrite nanocomposites for x‑band applications |
| url | http://psasir.upm.edu.my/id/eprint/117690/ http://psasir.upm.edu.my/id/eprint/117690/ http://psasir.upm.edu.my/id/eprint/117690/ http://psasir.upm.edu.my/id/eprint/117690/1/117690.pdf |