Nano-Crystalline Barium Hexaferrite Powders Prepared by Mechanical Alloying Using Acetate Precursor

摘要：

　　Nano-crystalline barium hexaferrite powders have been prepared by mechanical alloying of nFe2O3+Ba(CH3COO)2 with Fe/Ba molar ratios of 10-12 and subsequent heat treatment.Thermal behavior,phase composition,morphology and magnetic properties of samples were studied using DTA/TGA,XRD,SEM and VSM,respectively.Nano-crystalline Ba-hexaferrite with a mean crystallite size of 46 nm and magnetic properties as high as Ms =73.9 A.m2/kg and Hci =334.2 kA/m was formed for mixture of 5.5Fe2O3+Ba(CH3COO)2 which was milled for 48 h and then annealed at 1100 ℃.

关键词： Nano-crystalline Ba-hexaferrite Magnetic properties Mechanical alloying

作者: M.Honarvar Nazari A.Ataie S.A.Seyyed Ebrahimi

作者单位: School of Metallurgy and Materials Engineering,University of Tehran,Tehran,Iran

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 610-612

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）