| 纳米光亮镀锌层的结构研究 |
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| 引用本文： | 喻敬贤,陈永言,黄清安,杨汉西. 纳米光亮镀锌层的结构研究[J]. 高等学校化学学报, 1999, 20(1): 107 |
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| 作者姓名： | 喻敬贤 陈永言 黄清安 杨汉西 |
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| 作者单位： | 武汉大学化学系, 武汉 430072 |
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| 摘 要： | 用正电子湮没技术、X射线衍射技术和透射电子显微镜研究了氯化钾酸性纳米光亮镀锌层的晶体结构.结果表明,该纳米光亮镀锌层是一种介于晶态与非晶态之间的镀层结构,镀层中存在的有机物夹杂和渗氢以及纳米锌微晶中大量的界面原子使镀层具有很高的缺陷浓度,而且有机物夹杂和渗氢主要分布在纳米微晶的界面组元中.
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| 关 键 词： | 光亮镀锌层 正电子湮没技术 缺陷 |
| 收稿时间： | 1997-12-10 |
Structure Studies on the Bright Nanocrystalline Zinc Deposit |
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| YU Jing-Xian,CHEN Yong-Yan,HUANG Qing-An,YANG Han-Xi. Structure Studies on the Bright Nanocrystalline Zinc Deposit[J]. Chemical Research In Chinese Universities, 1999, 20(1): 107 |
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| Authors: | YU Jing-Xian CHEN Yong-Yan HUANG Qing-An YANG Han-Xi |
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| Affiliation: | Department of Chemistry, Wuhan University, Wuhan, 430072 |
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| Abstract: | The crystalline defects in the brig ht nanocrystalline zinc deposit were investig ated by using posit ron annihilation lifetime spectroscopy(PLAS), Xray dif fraction and transmission Electron microscope.It has been found that The bright nanocryst alline zinc deposit is a kind of structure betw een polycrysta Line and amorphous structure.The existence oforg anic additives and The hydrogen permeated and The high grain boundaries area in the nanocrystalline zinc deposit lead to a very high concent ration of defects.The organic addit ives and hydrogen mainly exist in The inter f acial domain of zinc nanocryst alline here. |
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| Keywords: | Bright zinc deposit Positron annihilation lifetime spectroscopy Defects |
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