Effect of cathode polarization on microstructure and properties of bulk nanocrystalline nickel prepa

来源 :第四届国际表面与界面科学与工程学术会议(The Fourth International Conference on S | 被引量 : 0次 | 上传用户：fht5403

【摘要】

：

【作者】

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J.K.Yu T.F.Jing G.Y.Qiao Y.W.Gao J.Yang Q.Li

【机构】

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State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,H

【出处】

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第四届国际表面与界面科学与工程学术会议(The Fourth International Conference on S

【发表日期】

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2009年12期

【关键词】

：

deposition microstructure polarization potential control step

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　　The impact of the jet flow rate (υ) of electrolyte on the cathode polarization potential (ηc) and the microstructure of deposit has been studied by measuring the cathode polarization curve and observing the microstructure.It was found that the polarization potential decreased and the microstructure refined when the flow rate of the electrolyte increased.At the current density of 80 A·dm-2,when the jet flow rate increased from 1.00 L/min to 5.90 L/min,the cathode potential decreased from 1.840 V to1.542 V (vs SCE),and the grain size reduced from 22.6 nm to 18.9 nm.The results indicated that the nickel jet electrodeposition is mixed kinetics and mass transport controlled.

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Effect of cathode polarization on microstructure and properties of bulk nanocrystalline nickel prepa

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