6Zhong Wei, Ding Weiping, et al. Preparation and magnetic properties of barium hexaferrite nanoparticles produced by citrate process. J Am Ceram Soc,1997,80(12):3258.
7Zhang Haijun, Yao Xi, et al. The preparation and microwave properties of BaZn2-zCozFe16 O27 ferrite obtained by a sol-gel process. Cera Int,2002,28:171.
8Lei Hou, Hou Yudong, Zhu Mankang, et al. Formation and transformation of ZnTiO3 prepared by sol-gel process. Mater Lett,2005,59:197.
9Wang Xiaohong, Lu Guanzhong, Guo Yun, et al. Preparation of high thermal-stabile alumina by reverse microemulsion method. Mater Chem Phys,2004 ,DTD5,1.
10Melezhyk O V, Prudius S V, et al. Sol-gel polymer-template synthesis of mesoporous WO3/ZrO2. Microporous and Mesoporous Materials ,2001,49:39.
