共搜索到17066条信息,每页显示10条信息,共1707页。用时:0小时0分0秒343毫秒
Mg-doped ZnO radial spherical structures via chemical vapor depositionPENG Jiangqiang, GUO Jian, DING Shulong, XU Qiao, LI Hang, TAN Xuwei, and ZHAO Xian Faculty of Materials, Optoelectronics... successfully prepared via chemical vapor deposition (CVD) of Zn and Mg powders in the absence of a catalyst. The structures associated with different growth temperatures (700, 800, and 850°C) were......
Synthesis of Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition李刚1,2,周明11. Jiangsu Key Laboratory of Center for Photon Manufacturing Science and Technology,Jiangsu University2. School... by chemical vapor deposition with C2H2 as carbon source. A thin film of Ni served as catalyst was deposited on the Si substrate by the K575X Peltier Cooled High Resolution Sputter Coater before growth......
Chemical stability of doped BaCeO3-BaZrO3 solid solutions in different atmospheres吕敬德,王岭,樊丽华,李跃华,戴磊,郭红霞摘 要:BaCe0.45Zr0.45M0.1O3–δ (M=Y, In) and BaCe0.9Y0.1O3–δ were prepared through the conventional solid state reaction route. The chemical stability was investigated in hydrogen, carbon dioxide, and boiling water. Crystalline phase and microstructure......
RESEARCH ON CHEMICAL AND PHYSICAL ACTIVATION OF γ-C2S龙世宗,王影欣,冯修吉摘 要:<正>This paper reports the experiments of chemi-cal and physical activation...,by irradiat-ing γ-C2S with energetic ray,can promote its 3 dsays hydrat-ed ratio to 29%.Our experiments illustrate the mechanisms ofγ-C2S chemical activation and physical activation.The for-mer......
Effect of Chemical Compositions on Temperature Susceptibility of Bitumens梁永胜1,2,余剑英11. Key Laboratory of Silicate Materials Science and Engineering of Education Ministry, Wuhan University...) of the bitumens were separated and tested by thin-layer chromatography with flame ionization detection (TLC-FID) and the effect of chemical compositions on temperature susceptibility of bitumens was analyzed......
Fabrication of Submicron-Diameter and Taper Fibers Using Chemical EtchingHani J. KbashiDepartment of Physics, College of Science, University of Baghdad, Baghdad, Al-Jadriya-10070, Iraq摘 要:The thin, long length and high smoothness silica photonic nanowires and taper optical fiber were fabricated using a simple and low cost chemical etching method. A two......
Fabrication of tungsten films by metallorganic chemical vapor depositionYi Li1,2), Jin-pu Li1), Cheng-chang Jia1), and Xue-quan Liu2) 1) School of Materials Science and Engineering, University...">Tungsten films growing on copper substrates were fabricated by metallorganic chemical vapor deposition (MOCVD). The chemi-cal purity, crystallographic phase, cross-sectional texture, and resistivity......
-step anodization process. The porous anodic aluminum oxide(AAO) membranes were anodized in oxalic acid, which was subsequently treated with chemical etching process with 1.0 mol/L sodium hydroxide... to character the morphology and structure of the obtained alumina nanostructure. It is found that alumina nanowires are generated in the acidic chemical etching solution, while nanotube structures......
; 文献标识码:A Chemical purifying process of refined indium YU Li-min, JIANG Wen-quan, SUN Hai-feng, FU Zhong-zhen, XIA Wen, LIU Hong, SUN Ze-ming (Analysis and Measurements Research Center, General Research Institute for Non-ferrous Metals, Beijing 100088, China) Abstract: The chemical purifying process of refined indium was studied. In order to remove impurities Cd......
J. Cent. South Univ. Technol. (2009) 16: 0931-0935 DOI: 10.1007/s11771-009-0155-7 Chemical component and antimicrobial activity of volatile oil of Calycopteris floribunda LIU Jia-jia(刘佳佳)1, YANG Dong-liang(杨栋梁)1, ZHANG Yan(张 艳)1, YUAN Yao(袁 遥)1, CAO Fu-xiang(曹福祥)2, ZHAO Jian-ming(赵建明)3, PENG Xiao-bo(彭潇波)1 (1. School of Chemistry and Chemical Engineering, Central South University......