| 一种新的研究电沉积生核过程的电化学方法 |
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| 引用本文： | 于维平,段淑贞.一种新的研究电沉积生核过程的电化学方法[J].北京航空航天大学学报,1997,23(4):530-534. |
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| 作者姓名： | 于维平 段淑贞 |
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| 作者单位： | [1]北京航空航天大学 [2]北京科技大学 |
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| 摘 要： | 在恒阴极电流上叠加一小振幅方波电流研究电沉积的生核过程，理论分析表明，由小幅度方波电流的电位－时间响应曲线可以表征原有恒电流下的电极特征；电沉积中产生的过电位特征峰是由于生核步骤迟缓所造成。实验结果证明：电沉积Ｎｉ－Ｐ合金初期形成非晶核所需能量比电沉积晶态Ｎｉ核要小得多。
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| 关 键 词： | 电沉积 电化学过程 非晶态合金 生核过程 |
NEW ELECTROCHEMICAL METHOD TO STUDY NUCLEI FORMATION IN ELECTRODEPOSITION |
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| Yu Weiping.NEW ELECTROCHEMICAL METHOD TO STUDY NUCLEI FORMATION IN ELECTRODEPOSITION[J].Journal of Beijing University of Aeronautics and Astronautics,1997,23(4):530-534. |
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| Authors: | Yu Weiping |
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| Abstract: | A square current wave with a small amplitude was superimposed on plating current to study the nuclei formation in electrodeposition.It has been confirmed,theoretically,that the responding chronopotentiogram can be used to describe the character of the electrode in electrodeposition and the overpotential peak is caused by the sluggish nucleation.It was shown from experimental results that,in the initial stage of plating Ni P amorphous alloy,the required energy to form nuclei was much smaller than that in the case of plating crystal Ni. |
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| Keywords: | electrodeposition electrochemical process amorphous alloys Ni P |
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