Paper Title:
Structure and Magnetic Properties of BaLa0.5Fe11.5O19/ SiO2
  Abstract

The paper aims at synthesizing La substituted BaM hexaferrites (BaLa0.5Fe11.5O19) in the presence of SiO2 nano-particles by sol-gel method. Effects of SiO2 nano-particles on the structure and particle size of hexaferrites are investigated by XRD and SEM. Magnetic properties of BaFe12O19, BaLa0.5Fe11.5O19 and BaLa0.5Fe11.5xO19/SiO2 are compared by vibrating sample magnetometer (VSM). The XRD patterns of BaLa0.5Fe11.5O19/SiO2 calcined at 1000°C manifest that all the species have hexagonal crystal structure and no diffraction peaks of SiO2 are found. Compared with BaLa0.5Fe11.5O19 powders, those synthesized in the presence of SiO2 nanoparticles present in smaller powder size, as proved by SEM. The results of VSM reveal that BaLa0.5Fe11.5O19 possesses much higher saturation magnetization than BaFe12O19. BaLa0.5Fe11.5xO19/SiO2 also shows higher saturation magnetization than BaFe12O19, but lower than BaLa0.5Fe11.5O19 because of addition of nano-SiO2.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
626-628
DOI
10.4028/www.scientific.net/KEM.368-372.626
Citation
Z. D. Han, L. M. Dong, Z. Wu, X. Y. Zhang, "Structure and Magnetic Properties of BaLa0.5Fe11.5O19/ SiO2", Key Engineering Materials, Vols. 368-372, pp. 626-628, 2008
Online since
February 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Dong Han, Li Min Dong, Ze Wu, Lian Wei Shan, Xian You Zhang
Abstract:BaFe12O19 and La-Mn substituted M-type Ba hexaferrites were synthesized by sol-gel method and characterized by XRD, SEM and FTIR. The...
688
Authors: Xi Xao, Cheng Qian, Zhen Qiu He
Abstract:A sol-gel process was used to synthesize nanosized Ca-Zn ferrite powders. DTA-TG, XRD and SEM techniques are employed to investigate the...
1999
Authors: Ze Yang Zhang, Xiang Xuan Liu, You Peng Wu
Abstract:M-typical SrFe12O19 ferrites and FeNi3 nanoplatelets were successfully prepared by the sol-gel method and solution phase reduction method,...
893
Authors: Jie Li, Huai Wu Zhang, Yuan Xun Li, Hua Su, Yan Bing Ma
Chapter 1: Polymer Composites and Applied Materials
Abstract:In this study, influence of Bi2O3 on the structure and magnetic properties of barium ferrites has been studied in...
31
Authors: S. Nasir, M.A. Malik, G. Asghar, G.H. Tariq, M. Akram, M. Anis-ur-Rehman
Abstract:Ni-Zn ferrite nanoparticles with Cr doping, having the general formula...
343