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analysis indicates the presence of the Si-O-Fe bond in the Fe3O4:SiO2 (1:10, mole fraction) nanocomposite. Key words: nanocomposite; Fe3O4; SiO2; sol-gel synthesis 1 Introduction Magnetic... such as silica, alumina, titania or zeolite, silica can be a most suitable material for the matrix because of its non-toxicity, inertness to magnetic field and easiness to form cross-lined network......
Article ID: 1003-6326(2005)02-0306-04 Synthesis and characterization of single-crystalline alumina nanowires ZHAO Qing(赵 清), XU Xiang-yu(徐向宇), ZHANG Hong-zhou(张洪洲), CHEN Yao-feng(陈耀锋), XU Jun(徐 军), YU Da-peng(俞大鹏) (School of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China) Abstract: Alumina nanowires were synthesized on large-area......
Glass-coated Individual Dispersed MWNTs in Alumina & Its High Temperature Stability付克勤Yantai Branch of China Academy of Ordnance Science摘 要:An ultrasonication assisted sol-gel processing route for MWNTs/Alumina was proposed. Using aluminum ethoxide as an alumina precursor and ethanol/water as a solvent, the duration of the transformation from sol......
the as-spun fibers, which are derived from the sol with a mass fraction of 22.5% at 1 000 ℃. Key words: alumina-based ceramic fiber; electrospinning; sol mass fraction; fiber diameter 氧化铝基陶瓷纤维因其高温稳定性好和抗拉强度高等优... mullite fibers from the sol-gel precursor[J]. Journal of Sol-Gel Science and Technology, 2015, 74(1): 208-219. [11] TANG Xueyuan, YU Yuxi. Electrospinning preparation and characterization of alumina......
ZrO2-Y2O3复合Sol(溶胶)的制备吕反修,许庆芳,吕永平,叶锐曾,宋铂北京科技大学材料系泸州化工学院摘 要:用无机金属盐水解及有机醇盐中间体合成制备Ｓｏｌ(溶胶)的方法,包括制备ＺｒＯ２-Ｙ２Ｏ３Ｓｏｌ,Ｓｏｌ的纯化,Ｓｏｌ-Ｇｅｌ转变,表征了Ｓｏｌ的各项物理化学特性,对两种方法制备的Ｓｏｌ进行了比较,结果表明,所制备的Ｓｏｌ都呈非聚集态,颗粒细小(＜１０ｎｍ),有非晶特征,１０００℃×１００ｈ的静态氧化试验证明,用有机醇盐制备的复合(ＺｒＯ２─Ｙ２Ｏ３)Ｓｏｌ涂覆在ＭＣｒＡｌＸ／ＧＨ２２０高温合金上显示了良好的抗氧化性能.关键词:Sol(溶胶);Gel(凝胶);纯化;有机醇盐;......
Alumina nanostructures prepared by two-step anodization process ZHOU Jian-hua(周建华), HE Jian-ping(何建平), ZHAO Gui-wang(赵桂网), ZHANG Chuan-xiang(张传香), ZHAO Ji-shuang(赵继爽), HU Huo-ping(胡火平) College...; Abstract: Alumina nanostructures were obtained by two......
Comparison of deep desulfurization methods in alumina production processLIU Zhan-wei(刘战伟)1, 2, LI Wang-xing(李旺兴)3, MA Wen-hui(马文会)1, 2, YIN Zhong-lin(尹中林)3, WU Guo-bao(武国宝)3(1. Faculty...:Several methods of deep desulfurization in alumina production process were studied, and the costs of these methods were compared. It is found that most of the S2- in sodium aluminate solution can......
Characterization of Ceramic Composite-Membranes Prepared by ORMOSIL Coating Sol Tae-Bong Kim1,Goo-Dae Kim2 (1.Division of Materials,Korea Institute Science and Technology,Seoul 136-791,Korea;2.School of New Materials Science and Engineering,Yonsei University,Seoul 120-749,Korea) Abstract:Sol-gel methods offer many advantages over conventional slip-casting, including the ability to produce......
Preparation of long alumina fibers by sol-gel method using tartaric acidHong-bin Tan School of Materials Science and Engineering,Shaanxi University of Technology,Hanzhong 723003,China摘 要:Long alumina fibers were prepared by sol-gel method.The spinning sol was obtained by mixing aluminum nitrate,tartaric acid,and polyvinylpyrrolidone with a mass ratio......
Electrochemical modification process of anodic alumina membrane YU Mei(于 美), LIU Jian-hua(刘建华), LI Song-mei(李松梅) School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Received 10 April 2006; accepted 25 April 2006 Abstract: The modification procedure of anodic alumina membrane(AAM) was studied. The AAM structure after......
