Characteristics and Crystal Structure of Calcareous Deposit Films Formed by Electrodeposition Process in Artificial and Natural Seawater

Jun-Mu Park, Myeong-hoon Lee, Seung-Hyo Lee
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引用次数: 4

Abstract

In this study, we tried to form the calcareous deposit films by the electrodeposition process. The uniform and compact calcareous deposit films were formed by electrodeposition process and their crystal structure and characteristics were analyzed and evaluated using various surface analytical techniques. The mechanism of formation for the calcareous deposit films could be confirmed and the role of magnesium was verified by experiments in artificial and natural seawater solutions. The highest amount of the calcareous deposit film was obtained at 5 A/m2 while current densities between 1–3 A/m2 facilitated the formation of the most uniform and dense layers. In addition, the adhesion characteristics were found to be the best at 3 A/m2. The excellent characteristics of the calcareous deposit films were obtained when the dense film of brucite-Mg(OH)2 and metastable aragonite-CaCO3 was formed in the appropriate ratio.
人工海水和自然海水中电沉积形成的钙质沉积膜的特性和晶体结构
在本研究中,我们尝试用电沉积的方法来形成钙质沉积膜。采用电沉积法制备了均匀致密的钙质沉积膜,并利用各种表面分析技术对其晶体结构和特性进行了分析和评价。通过人工和天然海水溶液的实验,证实了钙沉积膜的形成机理,并验证了镁的作用。当电流密度为5 A/m2时,钙沉积膜的含量最高,而电流密度为1 ~ 3 A/m2时,钙沉积膜的形成最均匀、致密。此外,在3 A/m2时,附着力最好。当水镁石- mg (OH)2和亚稳文石- caco3以适当的比例形成致密膜时,获得了优良的钙质沉积膜特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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