期刊论文

Preparation of ultra fine BaFe12O19 powder

中文

长沙理工大学学报(自然科学版)

1672-9331

2006

3

2

86-90

10.3969/j.issn.1672-9331.2006.02.018

湖南省自然科学基金资助项目（04JJ3035）； 湖南省教育厅科研资助项目（04hnjy054）；

本校为第一机构

研究了溶胶-凝胶法制备M型钡铁氧体超细粉体过程中,起始溶液的组成、溶液pH值、反应温度和热处理温度等因素等对产物性能的影响.用X射线衍射仪（XRD）、透射电子显微镜（TEM）对粉体的结构、形貌进行表征.研究发现,pH值为7,Fe与Ba之比在10～12之间,溶胶温度为60℃,450℃预热处理1 h后,经850℃热处理3 h,都能够形成单一、均匀的M型钡铁氧体.

Ultra fine barium hexaferrite particles were prepared by sol-gel technique. The effects of the compositiom, pH and temperature of the solution and the calcination temperature on ferrite products were investigated. The crystal structure, grain size and morphology were studied using XRD and TEM. The results show that ultra-fine M-type barium hexaferrite particles can be successfully fabricated in the conditions of pH = 7, Fe： Ba = 10 - 12, t = 60 ℃ and calci...