Initial susceptibility and viscosity properties of low concentration e-Fe3 N based magnetic fluid

نویسندگان

  • Wei Huang
  • Jianmin Wu
  • Wei Guo
  • Rong Li
  • Liya Cui
چکیده

In this paper, the initial susceptibility of e-Fe3N magnetic fluid at volume concentrations in the range F = 0.0 ~ 0.0446 are measured. Compared with the experimental initial susceptibility, the Langevin, Weiss and Onsager susceptibility were calculated using the data obtained from the low concentration e-Fe3N magnetic fluid samples. The viscosity of the e-Fe3N magnetic fluid at the same concentrations is measured. The result shows that, the initial susceptibility of the low concentration e-Fe3N magnetic fluid is proportional to the concentration. A linear relationship between relative viscosity and the volume fraction is observed when the concentration F < 0.02.

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تاریخ انتشار 2007