KINETICS OF THE FORMATION OF AMORPHOUS Nd-Fe-B PARTICLES BY CHEMICAL REDUCTION

نویسندگان

  • M. López Quintela
  • J. Rivas
  • I. Winter
  • W. Knoche
چکیده

Fine and ultrafine Nd-Fe-B particles have been obtained from metallic cation reduction by borohydride ions both in water and microemulsions. In this way amorphous particles of different sizes ranging from 4-50 nm to 100-400 nm can be obtained. In this work we will report on the kinetics of the growth of the particles studied by stopped-flow with UV-Vis detection. Quantum effects are suggested for the particles with sizes about 5 nm.

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تاریخ انتشار 2017