甲苯稀释对AlCl3-EMIC型离子液体电镀铝工艺氢脆性的影响  

Effect of dilution of AlCl3-EMIC ionic liquid with methylbenzene on hydrogen embrittlement of aluminum coating electroplated therefrom

作　　者：张骐 潘峤 詹中伟 孙志华 汤智慧 宇波 ZHANG Qi;PAN Qiao;ZHAN Zhongwei;SUN Zhihua;TANG Zhihui;YU Bo(Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Materials,Beijing Institute of Aeronautical Materials,Surface Engineering Institution,Beijing 100095,China)

机构地区：[1]北京航空材料研究院航空材料先进腐蚀与防护航空科技重点实验室,北京100095

出　　处：《电镀与涂饰》2020年第8期469-473,共5页Electroplating & Finishing

摘　　要：采用甲苯作为AlCl3-EMIC(1-乙基-3-甲基咪唑)型离子液体的稀释剂,其中纯态离子液体由物质的量比为2∶1的无水AlCl3和EMIC组成。对比了纯态和按稀释剂与离子液体体积比为1∶1稀释后电镀铝的外观、微观形貌和氢脆性。结果表明,采用甲苯稀释离子液体虽然可以降低镀液的黏度,改善镀层外观和微观形貌,但对离子液体电镀铝工艺的氢脆性有负面影响。Methylbenzene was used as a diluent for the ionic liquid comprising AlCl3 and EMIC(1-ethyl-3-methylimidazolium chloride)at a molar ratio of 2:1.The appearance,micromorphology,and hydrogen embrittlement of the aluminum coating electroplated from the AlCl3-EMIC ionic liquid before and after being diluted by equivolumetric methylbenzene were compared.It was found that the dilution with methylbenzene reduced the viscosity of the AlCl3-EMIC ionic liquid,improved the appearance and micromorphology of the aluminum coating,but was detrimental to the hydrogen embrittlement of aluminum coating.

关 键 词：电镀铝 1-乙基-3-甲基咪唑 离子液体 甲苯 稀释 氢脆 

分 类 号：TQ153.13[化学工程—电化学工业]