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池；高分散；微细银粉；化学还原 中图分类号:TF 123.7+2 文献标志码:A Preparation of ultra-fine silver powder utilized in solar cells LIU Xiao-gang, GAN... powder during the reaction. Silver powder with average particle size of 0.7 μm, tap density of 4.0 g/mL can be obtained by the process optimal. The density of the front electrode of polycrystalline solar......
用萃取-置换镀-球磨法一次性制备片状银包铜粉 刘成1 (1.贵研铂业股份有限公司,昆明贵金属研究所,云南,昆明,650106) 摘要:将自制的球形超细铜粉,通过球磨改性成为片状铜粉,同时进行化学还原和铜离子萃取,在银氨溶液中置换镀银,使银均匀地沉积在铜的表面,并借助球磨的机械作用使镀层更紧密,包覆更完全.该工艺过程简单,可兼顾成本和性能两方面要求,可一次性制备高性能,低成本的片状镀银铜粉. 关键词:金属材料; 镀银铜粉; 片状; 萃取; 抗氧化性; 导电性; metal materials; silver covered copper powder; flake; extraction; oxidation resistance; conductivity; [全文内容正在添加中] ......
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is kept unchanged. Scanning electron microscopy, X-ray diffractometry and energy dispersive X-ray analysis were used to characterize the particle products. Key words: silver powder; wet-chemical..., solid oxide fuel cells and chemical catalysts, etc. Considerable interests in synthesizing silver powder have been ever-increased during the past few years because of its high electrical......
and ethylenediamine in reaction solution and the reaction temperature. The film containing nano flake of silver has the strongest UV absorption spectra at 800 nm with red-shift when the reaction temperature...响[J]. 中国有色金属学报, 2009, 19(3): 595-600.WEI Li-li, XU Sheng-ming, XU Gang, CHEN Song-zhe, LI Lin-yan. Effects of surfactants on dispersive performance of ultrafine silver powder[J]. The Chinese Journal......
; 文献标识码:A 文章编号:1672-7207(2007)03-0497-05 Preparation and characterization of uniform spherical nanometer silver powder...-dispersive nanometer silver powder was gained by silver sols after succedent centrifugal-separating and vacuum-dryness disposal. The influences of the reaction temperature and pH on the granularity......
;silver ion of powder treated at the relatively low temperature is larger than that of powder treated at the relatively high temperature. The antibacterial tests show that the antibacterial activity... for treatment of infectious diseases. While titanium dioxide is doped by silver, the silver-doped titanium dioxide powder can show a marked antibacterial activity even without the presence of light......
control agents in the preparation and consolidation behavior of nanocrystalline silver by mechanochemical method [J]. Adv Powder Technol, 2012, 23(6): 808-813. [5] KHAYATI G R, JANGHORBAN K, SHARIAT M H...Trans. Nonferrous Met. Soc. China 23(2013) 543-547 Thermodynamic approach to synthesis of silver nanocrystalline by mechanical milling silver oxide Gholam Reza KHAYATI1, Kamal JANGHORBAN2 1......
Trans. Nonferrous Met. Soc. China 23(2013) 3822-3828 Cyanide-free silver electroplating process in thiosulfate bath and microstructure analysis of Ag coatings Feng-zhang REN1, Li-tao YIN1, Shan-shan...-free silver electroplating was conducted in thiosulfate baths containing AgNO3 and AgBr major salts, respectively. The effects of major salt content and current density on surface quality, deposition......
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