| 학회 |
한국재료학회 |
| 학술대회 |
2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 |
26권 1호 |
| 발표분야 |
G. 나노/박막 재료 분과 |
| 제목 |
Magnetic-Field-Induced growth of iron nanowires and characterization |
| 초록 |
Iron has the highest room-temperature value of the saturation (σs) and the lowest atomic mass among the 3d ferromagnetic transition metals (Fe, Co and Ni), which is beneficial for electromagnetic interference magnetic loss and light weight requirements as an ideal metallic electromagnetic absorber. Here, we present the relationship between the forms of nanostructure, structural compositions and magnetic properties of iron nanowires and iron nanoparticles which have been synthesized via a simple chemical reduction of iron salt. The effects of magnetic field intensity have been evidenced as a main factor effect nanoparticle to form the wire-like structure. All the samples were characterized by X-ray diffraction (XRD) analysis, the morphology was examined by field emission electron microscopy (FESEM) and magnetic properties investigated by using a vibrating sample magnetometer (VSM). Fe nanowires structure comes from XRD analysis with characteristics peaks is indexed to α-Fe phase of (110), (200) and (211) facet. The FESEM images showed that the Fe nanowires with average diameter of 65 nm and length of over 5 μm are fabricated with aggregated into bundles. The specific saturation magnetization (Ms) value of Fe nanowire is slightly higher than Fe nanoparticles. Higher Ms value will enhance Fe nanowires permeability to be positive effects on electromagnetic absorber in microwave frequency. |
| 저자 |
Bulgan Tsedenbal, 신민지, 이순길, 허석환, 구본흔
|
| 소속 |
Changwon National Univ. |
| 키워드 |
iron nanowires; iron nanostructure; magnetic field intensity; saturation magnetization
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| E-Mail |
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