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Journal of Electron Microscopy Advance Access originally published online on April 3, 2006
Journal of Electron Microscopy 2006 55(3):123-127; doi:10.1093/jmicro/dfl005
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© The Author 2006. Published by Oxford University Press on behalf of Japanese Society of Microscopy. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Synthesis and structures of iron nanoparticles coated with boron nitride nanomaterials

Ichihito Narita1, Takeo Oku1,*, Hisato Tokoro2 and Katsuaki Suganuma1

1 Institute of Scientific and Industrial Research, Osaka University Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
2 Advanced Electronics Research Laboratory, Hitachi Metals Ltd 5200 Mikajiri, Kumagaya, Saitama 360-0843, Japan

*To whom correspondence should be addressed. E-mail: Oku{at}sanken.osaka-u.ac.jp

Iron (Fe) nanoparticles coated with boron nitride (BN) nanomaterials were synthesized by using Fe4N and B powders as raw materials. The Fe4N was reduced to {alpha}-Fe during annealing at 1000°C for several hours with flowing 100 sccm N2 gas. The reaction was predicted by Ellingham diagram. The atomic structure and magnetic properties were investigated by high-resolution electron microscopy and vibrating sample magnetometer system.

Keywords     BN nanomaterial, Fe nanocapsule coated with BN layers, Bamboo BN nanotube, High-resolution electron microscopy

Received     15 October 2004, accepted 24 February 2005


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