Polyparapheneylene (PPP) was doped by CeCl 4 and FeCl 3, and then electrorheological (ER) suspensions were prepared by polymer powder with high dielectric constants and silicone oil. Under electric field, the change...Polyparapheneylene (PPP) was doped by CeCl 4 and FeCl 3, and then electrorheological (ER) suspensions were prepared by polymer powder with high dielectric constants and silicone oil. Under electric field, the change of viscosity, leakage current density and relative physical constants were measured. The relationships among electric field strength, particle concentration, viscosity and leakage current density were discussed. The speed of electrorheological response and the recovery time were studied and corresponding mechanisms were investigated.展开更多
Owing to smelting vanadium-titanium magnetite ore,the amount of iron entrainment in slag as droplets is far higher than that in conventional BF slag.However,the iron droplets can be easily settled by blowing air into ...Owing to smelting vanadium-titanium magnetite ore,the amount of iron entrainment in slag as droplets is far higher than that in conventional BF slag.However,the iron droplets can be easily settled by blowing air into the molten slag.The results show that more than 80% of iron droplets in titania bearing slag can be settled and separated after treatment.The temperature rise of molten slag during the oxidizing process and the decreased viscosity caused by the component change of slag as well as air stirring in slag both accelerate the iron droplets settling.The vanadium content in the settled iron droplets and the original iron droplets was obtained by chemical analysis.The possible reason for the increased vanadium in the settled iron droplets was discussed by thermodynamic principles.展开更多
文摘Polyparapheneylene (PPP) was doped by CeCl 4 and FeCl 3, and then electrorheological (ER) suspensions were prepared by polymer powder with high dielectric constants and silicone oil. Under electric field, the change of viscosity, leakage current density and relative physical constants were measured. The relationships among electric field strength, particle concentration, viscosity and leakage current density were discussed. The speed of electrorheological response and the recovery time were studied and corresponding mechanisms were investigated.
基金Item Sponsored by National Natural Science Foundation of China(50234040)
文摘Owing to smelting vanadium-titanium magnetite ore,the amount of iron entrainment in slag as droplets is far higher than that in conventional BF slag.However,the iron droplets can be easily settled by blowing air into the molten slag.The results show that more than 80% of iron droplets in titania bearing slag can be settled and separated after treatment.The temperature rise of molten slag during the oxidizing process and the decreased viscosity caused by the component change of slag as well as air stirring in slag both accelerate the iron droplets settling.The vanadium content in the settled iron droplets and the original iron droplets was obtained by chemical analysis.The possible reason for the increased vanadium in the settled iron droplets was discussed by thermodynamic principles.
