PREPARATION OF SMCO_5 BY CHEMICAL COPRECIPITATION-REDUCTION-DIFFUSION METHOD (CPRD)

摘要

In this study, the method of chemical co-precipitation-reduction-diffusion was developed for the preparation of magnetic SmCo_5 alloy. In the chemical co-precipitation process, the effects of solution pH, the reactant concentration, the dispersant on the process were investigated. The optimum conditions of the process were determined, and the SmCo_5 alloy oxide precursor particles with fine crystalline structure, narrow size distribution was obtained. Then, by reduction-diffusion treatment of the precursor particles, the SmCo_5 alloy with high quality was produced. It is anticipated that the co-precipitation-reduction-diffusion is a novel method available for SmCo_5 alloy production.