Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)

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Preparation and Electromagnetic Properties of Ni-Co Coated W-type Barium Ferrite Hollow Microspheres

Authors
Zhiguang Li, Jianjiang Wang, Weijuan Mi, Liang Yu
Corresponding Author
Zhiguang Li
Available Online July 2016.
DOI
10.2991/aeece-16.2016.40How to use a DOI?
Keywords
hollow microspheres; W-type barium ferrite; Ni-Co electroless plating; electromagntic properties
Abstract

The Ni-Co coated W-type barium ferrite (BaZn0.6Co1.4Fe16O27) hollow microspheres (W-BFHMs) have been prepared by the self-reaction quenching technology and heat treatment at 1250 . The W-BFHMs is a type of light microwave absorbing material in GHz frequencies and its average particle size is 60 m. A conductive and magnetic Ni-Co layer was coated on the surface of W-BFHMs by electroless plating. Effects of plating time on the particle size, morphology, phase structure and microwave absorption properties of Ni-Co coated W-BFHMs are investigated through SEM, XRD, particle size analyzer and vector network analyzer. The results show that the Ni-Co deposits in the sag and the trench firstly and grows as the branch after filling the sag and the trench. With the increase of the plating time from 5 min to 25 min, the magnetic loss increase from 0.15 to 0.35, while the dielectric loss is not significantly change due to the incompletely covered. The effective absorbing bandwidth increase from 1 GHz to 2.7 GHz, while the absorption peak decrease from -12 dB to -32dB when the plating time is 25 min.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)
Series
Advances in Engineering Research
Publication Date
July 2016
ISBN
978-94-6252-231-2
ISSN
2352-5401
DOI
10.2991/aeece-16.2016.40How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Zhiguang Li
AU  - Jianjiang Wang
AU  - Weijuan Mi
AU  - Liang Yu
PY  - 2016/07
DA  - 2016/07
TI  - Preparation and Electromagnetic Properties of Ni-Co Coated W-type Barium Ferrite Hollow Microspheres
BT  - Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)
PB  - Atlantis Press
SP  - 191
EP  - 196
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-16.2016.40
DO  - 10.2991/aeece-16.2016.40
ID  - Li2016/07
ER  -