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Electrochemical performance of organic film on copper surface by polymer plating of 6-mercapto-1, 3, 5-triazine-2, 4-dithiol monosodium YE Qi(叶 奇), KANG Zhi-xin(康志新), LI Yuan-yuan(李元元... monosodium (TTN) compound was used to fabricate an organic film on pure copper. The polymer plating process of TTN on pure copper in Na2CO3 aqueous solution and the growth mechanism of poly......
Annulus electromagnetic stirring for preparing semisolid A357 aluminum alloy slurry BAI Yue-long(白月龙), XU Jun(徐 骏), ZHANG Zhi-feng(张志峰), SHI Li-kai(石力开) General Research Institute...; Abstract: The effects of pouring temperature and annulus gap width on the microstructure of the semi-solid A357 aluminum alloy......
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不锈钢表面Cr-Pd合金电沉积及镀层在强还原性介质中的耐蚀性徐亮1,唐鋆磊1,左禹1(1.北京市北京化工大学材料科学与工程学院)摘 要:通过选择络合剂,缓冲剂及采用方波脉冲电流和优化电镀工艺,在酸性镀液中实现了Cr-Pd共镀,并在不锈钢表面制备出均匀致密且与基体结合良好的Cr-Pd合金镀层.通过改变镀液中铬盐和钯盐的相对含量,可以大范围改变镀层成分.Cr-Pd合金镀层可显著提高不锈钢在高温还原性腐蚀介质中的耐蚀性,在沸腾的20%(质量分数)H2SO4溶液中,Cr-Pd合金镀层使316L不锈钢的腐蚀速率降低了4个......
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passes through the aluminum alloy substrate, Al2O3 passive film is formed on the substrate. When the breakdown of passive film or the gas envelope surrounding the workpiece occurs, Al2O3 phase... Article ID: 1003-6326(2005)03-0565-06 Amorphous coatings deposited on aluminum alloy by plasma electrolytic oxidation GUAN Yong-jun(关永军), XIA Yuan(夏 原) (Institute......
on magnesium alloy. However, the conventional sol-gel film tends to crack if it is thicker than several micrometers. it is possible to obtain a thin and crack-free layer with thickness less than 1 μm because.... Electrochemical impedance spectroscopy evaluation of the corrosion behavior of Mg alloy coated with PECVD organosilicon thin film [J]. Prog Org Coat, 2003, 46(2): 107-111. [9] TIAN X B, WEI CB, YANG S......
process of phytic acid 图8 镁合金表面水滑石/植酸复合膜成膜机理示意图 Fig. 8 Schematic diagram of formation of LDHs/PA film on magnesium alloy 3 结论 1) 采用植酸对AZ31镁合金单一水滑石膜进行后处理,有效改善了水滑石膜的裂纹,膜层致密性和均匀性得到提高.当植酸溶液的..., SONG Y, SHAN D, HAN E. Study of the in situ growth mechanism of Mg-Al hydrotalcite conversion film on AZ31 magnesium alloy[J]. Corrosion Science, 2012, 63: 148-158. [10] ZENG R, LIU Z, ZHANG F, LI S......
类号:O 484 文献标识码:A Effects of sputtering pressure on electrical and optical properties of transparent conducting ZnO thin film ZHOU Ji-cheng, LI Li (School.... The experimental results indicate that the crystalline quality of ZnO thin film is improved and the thin film shows higher c-axis orientation with increasing the pressure. The average transparency of ZnO......
. Because Ti, Ni and Pd elements are very different in their sputtering rates and adsorption coefficients at substrate surface, the film compositions are deviated from those of Ti50.6Ni19.4Pd30 alloy tar... is fabricated. Unlike making TiNi alloy film, in order to obtain an ideal compositions in TiNiPd film with higher transformation temperature, the target must be enriched with Pd not Ti. 3.2 Film......