摘要
本文研究了以共沉淀法和沉淀氧化法获得平均粒径大小及磁性能不同的Fe_3O_4超微粉的可能性。实验表明:以不同的共沉淀反应条件所制取的Fe_3O_4超微粉平均粒径及磁性能变化不大,而由改变沉淀氧化反应条件则可制取平均粒径及磁性能显著不同的各种Fe_3O_4超微粉。
The possibility gainning Fe_3O_4 Ultrafine powders with different average particle diameters and magnetic properties have been studied by chemical common precipitation and precipitation oxidation reaction. The experiments show that the change of the average particle diameter and magnetic property of the Fe_3O_4 ultrafine powder gainned by changing comnon precipitation eactiron condition is ont large, andlarge change of the average particle diameter and magnetic property of Fe_3O_4 ultrafine powder can be gainned by changing Fe(OH)_2 oxidation temperature and speed in precipitation oxidation reaction.
出处
《功能材料》
EI
CAS
CSCD
1993年第1期20-24,共5页
Journal of Functional Materials
关键词
四氧化三铁
超微粉
磁性
Fe_3O_4
ultrafine powder
magnetic
