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Rare Earth Doping Effects on Properties of Ceria-Zirconia Solid Solution Liang Tao1,Yin Ping1,Hu Yucai1,Jiang Wei1,Liu Bing1 (1.School of Chemistry and Materials Science, Ludong University, Yantai... conversion, lower light-off temperature and better high-temperature resistance. Key words:doping effects; ceria-zirconia solid solution; rare earths; [全文内容正在添加中] ......
Synthesis and Structural Determination of Eight-Coordinate NH4[Yb(Ⅲ)(Cydta)(H2O)2]·5H2O 李慧芳1,王君1,领小1,张向东1,贾卫国1 (1.Department of Chemistry, Liaoning University, Shenyang 110036, China) Abstract:Synthesis and structure of the complex NH4[Yb(Cydta) (H2O)2]*5H2O(Cydta=trans-1,2-cyclohexanediaminetetraacetic acid) were reported. The crystal and molecular structures of the title complex were......
Synthesis and Crystal Structure of a 4f-3d Complex [La(DMF)6(H2O)3][Cr(CN)6]·2H2O 高松1,寇会忠2 (1.State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871, China;2.Department of Chemistry, Tsinghua University, Beijing, 100084, China) Abstract:A 3d-4f complex [La(DMF)6(H2O)3][Cr(CN)6]*2H2O (DMF=N,N-dimethylformamide) was prepared and characterized......
improved. Meanwhile, at low impact speed, strain rate effect is more sensitive. Key words: square tube; energy absorption; crashworthiness; hardening coefficient; strain rate effects 安全是交通永恒的主题,据维基百科资料,世界... D, Alves M, Jones N. Inertia effects in axisymmetrically deformed cylindrical shells under axial impact[J]. International Journal of Impact Engineering, 2000, 24(10): 1083-1115. (编辑 杨幼平) 收稿日期......
Effects of Samarium on Liver and Kidney of Rats Shen Xiuying1,Shi Weilin2,Ma Xiying2 (1.School of Life and Environment, Zhejiang Normal University, Jinhua 321004, China;2.School of Life Sciences... earth Sm does hazard biological effects to animals. With increasing Sm concentration, the weight rate of organ/body has a tendency of increasing; the activity of superoxide dismutase (SOD) in liver......
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tension in three kinds of nano materials were analyzed, respectively. The simulation results show the surface effects on mechanical behavior and properties of nano materials, and the constitutive...; block: 19.98GPa) of each kind of nano materials are obtained. Key words: nano nickel; mechanical behavior; mechanical properties; molecular dynamics; surface effects 研究特征尺寸为1~100nm的结构与器件涉及......
[SiZn(H2O)W11O39]6-在玻碳电极上的多层组装及电催化性能杜金艳1,吕桂琴2,郑传明21. 安徽师范大学化学与材料科学学院2. 北京理工大学理学院化学系摘 要:采用循环伏安法研究一取代硅钨杂多酸在酸性水溶液中的电化学行为及pH的影响.制备了包含杂多酸[SiZn(H2O)W11O39]6-(SiZnW11)和聚合物阳离子-聚二烯丙基二甲基氯化铵(PDDA)的多层膜修饰电极,研究了其电化学行为.逐层的循环伏安行为表明膜的增长均匀,峰电流随膜层数的增加而增加,与其在溶液中的氧化还原行为相比,多层膜中的SiZnW11显示出一些特殊的性质.对BrO3-和NO2-体系的还原具有良好的电催化性能.关键词:过渡金属取代杂多酸[SiZn(H2O)W11O39]6;多层组装;循环伏安;电催化;......
Flow stress and tribology size effects in scaled down cylinder compression GUO Bin(郭 斌)1, 2, GONG Feng(龚 峰)1, WANG Chun-ju(王春举)1, 2, SHAN De-bin(单德彬)1, 2 1. School of Materials Science... because of size effects. Flow stress and tribology size effects were studied. Scaled down copper T2 cylinder compression was carried out with the lubrication of castor oil and without lubrication......
负热膨胀材料立方ZrMo2O8合成研究 王聪1,张跃2,王明松1,宋强2 (1.北京航空航天大学理学院材料物理与化学研究中心,北京,100083;2.北京航空航天大学材料科学与工程学院,北京,100083) 摘要:采用湿化学法合成了前驱物ZrMo2O7(OH)2(H2O)2, 并用SEM观察了不同回流时间所得晶粒形貌, 结果显示经过较短时间的回流(12 h)就能获得一定尺寸的晶粒并趋于稳定.观察了不同回流温度所得前驱物晶粒形貌, 其晶粒呈长方体棒状形态, XRD结果证明结晶度随回流温度的升高而提高; 探讨了不同回流温度下所获得的前驱物ZrMo2O7(OH)2(H2O)2对合成立方ZrMo2O8的影响.结果表明, 100 ℃回流所得前驱物经热处理后可获得纯立方相ZrMo2O8.此外, 对前驱物的热处理温度选择在400 ℃左右有利于纯立方相的获得. 关键词:负热膨胀材料......
