抄録
The purpose of this experiment is to investigate the effect of the catalytic reaction of NaGl and SrCO3 in the course of formation of the single phase of SrO⋅6Fe2O3 from the chemical coprecipitated powders( the Fe3+/Sr2+ ratio is 10.5). The preparation process is as follows ; coprecipitation→boiling→washing→drying→NaCl or SrCO3 addition(0-20 wt%)→heat treatment. The conditions determined as optimum for preparing the fine powders with the best values of σs=89.7×10-6 Wb⋅m/kg, HcJ= 401.8 kA/m and Tc=463°C are as follows : solution composition ; Fe3+/Sr2+=10.5 ; pH=13.0 ; NaCl=5wt% addition ; heat treatment ; 1000°C for 2hs in air ; particle size ; 0.2-0.3μm.
