Paper Title:
Preparation of Nanosized Ca-Zn Ferrite Particles by a Sol-Gel Method and its Magnetic Properties
  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 thermal decomposition of the dry gel, phase composition and microstructure of nanosized ferrite particles. The results revealed that the Ca0.4Zn0.6Fe2O4 phase appeared while calcined the gel powders at 300 °C for 2 hrs, and the Ca0.4Zn0.6Fe2O4 crystalline can be formed completely at 400 °C. Hysteresis loop indicated that the nanocrystallites size has great influence on the magnetic properties, which leads to the increase of the specific saturation magnetization and the decrease in coercivity of the samples with increasing the particle size.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1999-2001
DOI
10.4028/www.scientific.net/KEM.336-338.1999
Citation
X. Xao, C. Qian, Z. Q. He, "Preparation of Nanosized Ca-Zn Ferrite Particles by a Sol-Gel Method and its Magnetic Properties", Key Engineering Materials, Vols. 336-338, pp. 1999-2001, 2007
Online since
April 2007
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 Jun Xu, Rui Qing Chu, S.C. Cui, Jin Son Zhang
Abstract:Mixed-conducting ceramic oxide SrFeCo0.5Oy powders were prepared by a citrate method, and the contributing factors to the formation of...
971
Authors: Jing Pei, Zhen Xing Yue, Fei Zhao, Zhi Lun Gui, Long Tu Li
Abstract:The nano-sized Ba(Zr0.2Ti0.8)O3 powder was prepared by citrate sol-gel method. The crystal structure and the particle size of the powder...
76
Authors: Jia Huan Xu, Hua Ke, De Chang Jia, Wen Wang, Yu Zhou
Abstract:The present investigation reports on the preparation of BiFeO3 nanopowders by a sol-gel method using acetylacetone as a stabilizer....
314
Authors: Chun Lin Fu, Meng Huo, Wei Cai, Xiao Ling Deng
Abstract:BiFeO3 powders were prepared by sol-gel process and calcined at different temperatures. The DTA curve shows an obvious exothermic...
142
Authors: Yi Hang Fang, Kai Miao, Si Qiao Feng, Jia Meng Cao, Huan Ping Wang, Shi Qing Xu
Chapter 7: New Materials and its Applications
Abstract:The 0.95MgTiO3-0.05CaTiO3 (95MCT) powders and ceramics were prepared by a sol-gel method by using...
923