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Structure and magnetic properties of surface alloyed Fe nanocapsules prepared by arc discharge
P. Z. Si; C. J. Choi; E. Bruck; D. Y. Geng; Z. D. Zhang
2005
Source PublicationPhysica B-Condensed Matter
ISSN0921-4526
Volume369Issue:1-4Pages:215-220
AbstractC-Fe-Si alloy encapsulating Fe nanocapsules were fabricated by arc evaporating the mixture of Fe and SiC powders. The high temperature of the electric arc results in a surface reaction between SiC and Fe nanoparticles and therefore a uniform encapsulation of the Fe nanoparticles with its alloy. The size of the nanocapsules ranges from 10 to 60 ran while most shells are approximately 7 nm in thickness. Air oxidation to the as-prepared sample does not change the shell/core structure but the saturation magnetization and the coercivity are reduced. The characteristics of the nanocapsules were investigated systematically by using X-ray diffraction, transmission electron microscopy, energy dispersive spectra, X-ray photoelectron spectroscopy, and superconducting quantum interference device magnetometer. (c) 2005 Elsevier B.V. All rights reserved.
description.departmentkorea inst machinery & mat, nanoparticles div, chang won 641010, south korea. chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. univ amsterdam, van der waals zeeman inst, nl-1018 xe amsterdam, netherlands.;si, pz (reprint author), korea inst machinery & mat, nanoparticles div, 66 sangnam dong, chang won 641010, south korea;pzsi@mail.com
KeywordNanocapsules Transmission Electron Microscopy (Tem) X-ray Photoelectron Spectroscopy (Xps) Magnetic Properties Nanoparticles
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/35032
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
P. Z. Si,C. J. Choi,E. Bruck,et al. Structure and magnetic properties of surface alloyed Fe nanocapsules prepared by arc discharge[J]. Physica B-Condensed Matter,2005,369(1-4):215-220.
APA P. Z. Si,C. J. Choi,E. Bruck,D. Y. Geng,&Z. D. Zhang.(2005).Structure and magnetic properties of surface alloyed Fe nanocapsules prepared by arc discharge.Physica B-Condensed Matter,369(1-4),215-220.
MLA P. Z. Si,et al."Structure and magnetic properties of surface alloyed Fe nanocapsules prepared by arc discharge".Physica B-Condensed Matter 369.1-4(2005):215-220.
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