Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (07): 619-623.doi: 10.3866/PKU.WHXB19990708

• ARTICLE • Previous Articles     Next Articles

Study of Magnetic Properties in ZnxFe3-xO4 Composite Magnetic Fluids

Xu Ming-Xiang   

  1. Department of Mterials Science and Engineering Zhejiang University,Hangzhou 310027
  • Received:1998-10-05 Revised:1999-01-11 Published:1999-07-15
  • Contact: Xu Ming-Xiang

Abstract:

The Zn-substituted Fe_3O_4 composite magnetic fluids were obtained with different surfactants and solvents. Its specific saturation magnetization(σs), the coercivity(Hc) and the size as well as the homogeneity of the composite magnetic particles were systematically measured. The influence of the Zn content and surfactant on their magnetic properties was explained.

Key words: Composite magnetic fluids, Saturation magnetization(σs), Coercivity(Hc)