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Trans. Nonferrous Met. Soc. China 23(2013) 3643-3649 Effect of Zn and Ti mole ratio on microstructure and photocatalytic properties of magnetron sputtered TiO2-ZnO heterogeneous composite film Li...: Series of TiO2-ZnO heterojunction composite films with different n(Zn)/n(Ti) ratios were prepared by UDP450 magnetron sputter ion plating equipment, and the mole ratio of Zn to Ti was controlled......
Effect of mole ratio of Y to Zn on phase constituent of Mg-Zn-Zr-Y alloys LUO Su-qin1, TANG Ai-tao1, 2, PAN Fu-sheng1, 2, SONG Kai1, WANG Wei-qing1 1. College of Materials Science and Engineering... December 2010 Abstract: The phase constituent evolution of Mg-Zn-Y-Zr alloys with the mole ratio of Y to Zn both in the as-cast and as-annealed states at the Mg-rich corner was investigated by XRD......
刚石含量最高.此外,当镀液中Co2+含量增加至8%时,镀Ti金刚石-Ni-Co复合镀层内金刚石粉体的沉积量最少. 关键词:Ni-Co合金；金刚石；镀钛；复合电沉积；交流阻抗 中图分类号:TG153 文献标志码:A Effects of Co2+ content on Ti-coated diamond-Ni-Co composite...文章编号:1004-0609(2015)-05-1285-09 Co2+含量对镀Ti金刚石-Ni-Co复合电沉积的影响 张 鹂,王日初,彭超群,张 纯,谭时雨,王乃光 (中南大学 材料科学与工程学院,长沙 410083) 摘 要:采用电镀法制备镀Ti金刚石-Ni-Co复合镀层,研究镀液中Co2+含量对镀层形貌和性能的影响,并通过电化学阻抗谱研究Ni-Co复合电......
中图分类号:TG146.21 文献标志码:A 文章编号:1672-7207(2016)07-2242-07 Effect of mass ratio of Zn to Mg on quench...合金,通过末端淬火的方法研究其淬火敏感性,结合透射电镜微观组织观察结果就m(Zn)/m(Mg)对淬火敏感性的影响机理进行分析和探讨.研究结果可为密度更低的高强高韧高淬透性Al-Zn-Mg-Cu合金的研发提供参考. 1 实验 通过熔炼铸造获得Al-3Zn-4.5Mg-1Cu,Al-4Zn- 3.5Mg-1Cu和Al-5Zn-3.5Mg-1Cu 3种合金.原材料采用高纯铝锭,锌锭,镁锭,铝......
程进行了研究, 并对3种含不同氧化物组分的Ti基IrO2涂层电极的表面形貌及析氮电催化性能进行了比较. 1 实验 1.1 电极制备及形貌检测 将表面喷砂的尺寸为100mm×10mm×1mm的TA2型纯钛板经碱洗除油及水洗后, 再在沸腾的草酸溶液中酸刻蚀3h, 用去离子水冲洗干净并经过热风吹干. 采用传统的热分解法制备氧化物涂层. 以水合三氯化钌, 氯铱酸, 钛酸四丁脂...电催化性能, 其可能原因是金属元素PdRuTi的存在导致该电极表面特征裂纹最宽且最深, 氧化物涂层总析氮面积增多, 电催化活性增加. REFERENCES [1]唐谟堂, 杨声海. Zn(II)-NH3-NH4Cl-H2O体系电积锌工艺及反应机理[J].中南工业大学学报(自然科学版), 1999, 30(2): 153-156. TANG Mo-tang, YANG Sheng-hai......
, indicating crack initiation sites, whereas an aspect ratio of 1 was associated with uniform corrosion [29,37]. As shown in Fig. 3, the higher the Zn content is, the greater the number of corrosion pits...-Mg-Cu合金抗拉强度的提高主要归因于基体中形成的高密度纳米析出相.含11.0% Zn合金比含7.9% Zn (质量分数)合金的应力腐蚀平台速率高大约一个数量级,其主要原因是形成高Zn含量的晶界析出相和较宽的无沉淀析出带.基于合金的腐蚀断裂形貌,晶界微化学成分以及电化学性能,讨论不同Zn含量合金的应力腐蚀开裂机制. 关键词:Al-Zn-Mg-Cu合金；应力腐蚀开裂；锌含量；晶界微化学成......
Zn-TiO2 sol was attained. And the mole ratio of Zn to Ti was 1%. Besides, the pure TiO2 sol was also prepared for a comparison. Pure titanium sheets (20 mm × 20 mm × 2 mm) were used as the metal.... The potential of the Ti substrate dropped by 897 mV, which is higher than the potential drop of ITO (most of the reported results are 200-700 mV). The impacts of Zn-doping at different heat-treatment......
EDS成分检测结果中Zn和Al的摩尔比.从表1中可以发现,随着Zn靶溅射功率的不断增加,薄膜中Zn的相对含量呈上升的趋势,这是因为溅射功率越大,同一时间到达基底表面的Zn原子数越多,从而导致薄膜中Zn的相对含量增加. 表1 ZnO:Al薄膜中Zn和Al的摩尔比 Table 1 Mole ratio of Zn and Al in ZnO:Al thin films 图1所示...透明导电薄膜,研究Zn靶溅射功率(0~90 W)和衬底温度(室温,100 ℃和200 ℃)对薄膜结构,形貌,光学和电学性能的影响.结果表明:按双靶共溅射工艺制备的ZnO:Al薄膜的晶体结构均为六角纤锌矿结构,且随着Zn靶溅射功率的增加,薄膜的结晶质量呈现出先改善后变差的规律,薄膜中的载流子浓度逐渐升高,电阻率逐渐降低,而薄膜的光学性能受其影响不大；随着衬底温度的升高,薄膜的结晶性能得到改善,薄膜的......
and their mole ratio. To obtain Al-Li alloy with super-high strength, the total mole fractions of Cu and Li should be increased, and their mole ratios should also be kept at a certain high level. Key words: Al-Li alloy; precipitate; Cu/Li mole ratio; microstructure; mechanical properties 1 Introduction Al-Cu-Li alloys were considered the most attractive alloys in the aircraft and aerospace industries......
文章编号:1004-0609(2011)03-0687-07 新型萃取剂YORS萃取Zn(Ⅱ)-NH3配合物体系中的锌 何 静, 黄 玲, 陈永明, 唐谟堂, 金胜明, 冯瑞姝, 吴胜男 (中南大学 冶金科学与工程学院,长沙410083) 摘 要:为有效地富集低品位氧化锌矿氨浸液中的锌离子,使用新型萃取剂2-乙酰基-3-氧代-二硫代丁酸-十四烷基酯(YORS)从Zn(Ⅱ)-NH3配合物体...与游离态Zn2+作用生成配合物,NH3未被萃取. 关键词:氧化锌矿；Zn(Ⅱ)-NH3体系；溶剂萃取；2-乙酰基-3-氧代-二硫代丁酸-十四烷基酯 中图分类号:TF804.2 文献标志码:A Solvent extraction of zinc from Zn(Ⅱ)-NH3 complex system by new extractant......
