碳化硅表面钡铁氧体薄膜制备与吸波性能

材料导报, 2005, 19(6): 120-122.

1.同济大学材料科学与工程学院,上海,200092

2.同济大学材料科学与工程学院,上海,200092

基金项目: 上海市纳米科技专项基金(0352nm041) 高等学校博士学科点专项科研项目(20030247035)

Preparation and Microwave Absorptivity of BaFe12O19-encapsulated SiC Particles

采用柠檬酸盐溶胶-凝胶法在碳化硅表面形成钡铁氧体薄膜.XRD表明生成的铁氧体为六角磁铅型晶体BaFe12O19.测定了材料在0.1～6.0 GHz内的介电常数与磁导率.与单纯钡铁氧体比较,碳化硅表面沉积钡铁氧体薄层后复合相吸波频段宽化,吸波能力增强.

[1]	张晏清.纳米钡铁氧体的柠檬酸盐法制备与吸波性能[J].同济大学学报(自然科学版),2004(02):208-212.
[2]	Giannakopoulou T.;Kompotiatis L.;Kontogeorgakos A.;Kordas G. .Microwave behavior of ferrites prepared via sol-gel method[J].Journal of Magnetism and Magnetic Materials,2002(3):360-365.
[3]	Thakur A;Singh M .Preparation and charact-terization of nanosize Mn0.4Zn0.6 Fe2O4 ferrite by citrate precursor method[J].Ceramics International,2003,29:505.
[4]	Peng Cheng Hsiung;Wang Hongwen;Kan Shih Wei et al.Microwave absorbing materials using Ag-NiZn ferrite coreshell nanopowders as fillers[J].Journal of Magnetism and Magnetic Materials,2004,284(01):113.
[5]	Choi S H;Oh J H;Ko T .Preparation and characteristics of Fe3Og-encapsulated BaTiO3 powder by ultrasound-enhanced ferrite plating[J].Journal of Magnetism and Magnetic Materials,2004,272(03):2233.
[6]	张波,李建保,孙晶晶,张淑霞,翟华嶂.纳米碳化硅粉的制备及其微波介电行为[J].材料工程,2002(01):19-21.
[7]	张清敏;徐濮.扫描电子显微镜和X射线微区分析[M].天津:南开大学出版社,1988:198.

上一张下一张

计量

作者相关

文章评分