Paper Title:
Effect of Quenched Speed on Microwave Properties of the NdFeB Nanocomposites
  Abstract

The effect of the quenched speed on the microstructure and electromagnetic properties of melt spun Nd3Fe68Co18B11 nanocomposites was investigated. XRD spectra showed that only α-Fe phase can be obtained for both quenched samples. The complex permeability () and permittivity () within 2-18GHz were measured by vector network analysis. By virtue of quenched speed increased, the flake-like Nd3Fe68Co18B11 decreased the value of permittivity while that of permeability slightly changed. According to transmission line theory, the reflection loss was calculated. With thin matching thickness of 1.5mm, The Nd3Fe68Co18B11 composites realized the optimum reflection loss RL=-5.3dB at 3.6GHz and RL=-3.5dB at 3.9GHz for quenched speed 30m/s and 20m/s, respectively. It showed that it is possible to obtain good microwave absorbing properties with appreciated quenched speed for as spun Nd-Fe-B nanocomposites.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Functional Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
193-196
DOI
10.4028/www.scientific.net/AMR.287-290.193
Citation
G. Z. Xie, X. L. Song, B. S. Zhang, D. M. Tang, J. W. Chen, Q. Bian, H. X. Lu, "Effect of Quenched Speed on Microwave Properties of the NdFeB Nanocomposites", Advanced Materials Research, Vols. 287-290, pp. 193-196, 2011
Online since
July 2011
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Price
$32.00
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