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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: BaCo2Fe16O27 Ferrite: Preparation by EDTA-Citrate Complexing Method and Electromagnetic Properties
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 493-497)
Author(s): Xiao-gu Huang, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China
Li-xi Wang, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China
Jiao Chen, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China
Hong-zhou Wang, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China
Qi-tu Zhang, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China
Abstract: W-type ferrite (BaCo2Fe16O27) was prepared by EDTA-citrate complexing method using EDTA and citrate as complexing agents. The influences of pH values on the crystal structure and morphology were analyzed by means of XRD and SEM. Moreover, microwave electromagnetic properties of the ferrite were studied by network analyzer. The results displayed that the chelation between metallic ions and ligand reached an excellent degree when the pH value was 7.05, and the pure BaCo2Fe16O27 ferrite with hexagonal flake shape could be obtained in this condition. In addition, the maximum reflection loss (RL) was about -15.9 dB at 11.3GHz, and the absorption bandwidth reached 4.6 GHz when RL was -10 dB.
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