Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency
Cobalt-based amorphous alloys (Co-MG) demonstrate ultra-high permeability and remarkably-low power loss, positioning them as promising candidates for shielding (near-) static magnetic fields and addressing accuracy limitations in extremely-weak magnetic measurements. However, the brittleness and poo...
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Elsevier
2024-06-01
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Series: | Materials Today Advances |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2590049824000249 |
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author | Ting Sai Pengfei Wang Xiaoying Gu Xueping Xu Jinji Sun Jing Ye |
author_facet | Ting Sai Pengfei Wang Xiaoying Gu Xueping Xu Jinji Sun Jing Ye |
author_sort | Ting Sai |
collection | DOAJ |
description | Cobalt-based amorphous alloys (Co-MG) demonstrate ultra-high permeability and remarkably-low power loss, positioning them as promising candidates for shielding (near-) static magnetic fields and addressing accuracy limitations in extremely-weak magnetic measurements. However, the brittleness and poor understanding about magnetic performance below 100 Hz have impeded their widespread adoption. To integrate satisfied processing, magnetic and mechanical performances, polystyrene-grafted Co-MG composites are developed. Compared with permalloy-1J85, Co-MG-(g-PS_35 %) composite exhibits 40 % increase in initial permeability, 48 % increase in saturation magnetization, 71 % reduction in remanence within shielding area. In contrast to Mn–Zn ferrite, Co-MG-(g-PS_35 %) composite demonstrates the power loss and μ″/μ′2 values lower by an order of magnitude, resulting in magnetic noises 85 % lower at 1 Hz. Furthermore, the resultant composite maintains similar processing-rheological behaviors and mechanical properties compared with bulk polystyrene. It provides an innovative solution to expand real-world applications for biomagnetic detection, and overcome the sensitivity limitation of extremely-weak magnetic measurement. |
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institution | Directory Open Access Journal |
issn | 2590-0498 |
language | English |
last_indexed | 2024-04-24T08:11:13Z |
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publisher | Elsevier |
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spelling | doaj.art-0e8b667b486e40e096a5b49ae07dce082024-04-17T04:49:47ZengElsevierMaterials Today Advances2590-04982024-06-0122100487Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequencyTing Sai0Pengfei Wang1Xiaoying Gu2Xueping Xu3Jinji Sun4Jing Ye5Hangzhou Innovation Institute, Beihang University, Hangzhou, 310051, China; School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, ChinaHangzhou Innovation Institute, Beihang University, Hangzhou, 310051, China; National Institute of Extremely-Weak Magnetic Field Infrastructure, Hangzhou, 310051, China; School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, ChinaNational Institute of Extremely-Weak Magnetic Field Infrastructure, Hangzhou, 310051, ChinaSchool of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, ChinaSchool of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China; Corresponding author.National Institute of Extremely-Weak Magnetic Field Infrastructure, Hangzhou, 310051, China; School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China; Corresponding author. National Institute of Extremely-Weak Magnetic Field Infrastructure, Hangzhou, 310051, China.Cobalt-based amorphous alloys (Co-MG) demonstrate ultra-high permeability and remarkably-low power loss, positioning them as promising candidates for shielding (near-) static magnetic fields and addressing accuracy limitations in extremely-weak magnetic measurements. However, the brittleness and poor understanding about magnetic performance below 100 Hz have impeded their widespread adoption. To integrate satisfied processing, magnetic and mechanical performances, polystyrene-grafted Co-MG composites are developed. Compared with permalloy-1J85, Co-MG-(g-PS_35 %) composite exhibits 40 % increase in initial permeability, 48 % increase in saturation magnetization, 71 % reduction in remanence within shielding area. In contrast to Mn–Zn ferrite, Co-MG-(g-PS_35 %) composite demonstrates the power loss and μ″/μ′2 values lower by an order of magnitude, resulting in magnetic noises 85 % lower at 1 Hz. Furthermore, the resultant composite maintains similar processing-rheological behaviors and mechanical properties compared with bulk polystyrene. It provides an innovative solution to expand real-world applications for biomagnetic detection, and overcome the sensitivity limitation of extremely-weak magnetic measurement.http://www.sciencedirect.com/science/article/pii/S2590049824000249Amorphous alloysPolymer-grafted nanoparticlesSoft magnetic materialsUltra-weak magnetic measurementQuantum sensing |
spellingShingle | Ting Sai Pengfei Wang Xiaoying Gu Xueping Xu Jinji Sun Jing Ye Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency Materials Today Advances Amorphous alloys Polymer-grafted nanoparticles Soft magnetic materials Ultra-weak magnetic measurement Quantum sensing |
title | Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency |
title_full | Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency |
title_fullStr | Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency |
title_full_unstemmed | Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency |
title_short | Low magnetic noise, easy-to-process polystyrene-grafted amorphous alloy composites for extremely-weak magnetic measurement at ultra-low frequency |
title_sort | low magnetic noise easy to process polystyrene grafted amorphous alloy composites for extremely weak magnetic measurement at ultra low frequency |
topic | Amorphous alloys Polymer-grafted nanoparticles Soft magnetic materials Ultra-weak magnetic measurement Quantum sensing |
url | http://www.sciencedirect.com/science/article/pii/S2590049824000249 |
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