Nanocrystals of BaFe12O19 obtained by the proteic sol-gel process

作者：Fortes S S; Duque J G S; Macedo M A^*

来源：Physica B: Condensed Matter , 2006, 384(1-2): 88-90.

DOI：10.1016/j.physb.2006.05.158

• BaFe12O19
• nanocrystals
• proteic sol-gel process
• coconut water

Nanocrystals of BaFe12O19, with a small amount of the BaFe2O4, were obtained by means of the proteic sol-gel process together. The results demonstrated that the magnetic and crystallographic properties are dependent on the calcination temperature and the values of M-r/M-s are very close to 0.5, which is the expected value by the Stoner-Wohlfarth model. The best calcination temperature was at 900 degrees C with M-s = 55.5 emu/g, H-c = 4.1 kOe and crystallite size 39 nm.

• 出版日期2006-10-1