Fast Deposition of Surface Structures by Two-Step EPD

Fast Deposition of Surface Structures by Two-Step EPD
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通过两步 EPD 快速沉积表面结构

DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
R. Clasen
R. Clasen
中科院分区：
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文献类型：
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作者：
Alexander Nold;J. Zeiner;R. Clasen

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本文研究了在短时间内获得定义良好的致密EPD矿床的可行性。测试了有机悬浮液和水悬浮液中的EPD。来自溶剂电解的气泡的形成破坏了沉积。研制了4种不同的放电几何构型，并在不同的实验条件下对其进行了测试。其中一个由两个倾斜30°的电极组成，有助于避免气泡被困在沉积物中。我们的初步结果表明，施加的电压和电极之间的间隔距离对沉积的结构的宽度和高度有很强的影响。从环境的角度来看，使用水悬浮液比使用有机溶剂更合适。在这个方向上还需要做更多的工作，以提高沉积的质量，并微调实验条件。
In this paper, the feasibility of obtaining well-defined compact EPD deposits in a short time was studied. EPD from organic and aqueous suspensions were tested. The formation of bubbles coming from solvent electrolysis damages the deposits. 4 different EPD geometric configurations were developed and tested with different experimental conditions. One of them, consisting of both electrodes tilted 30° helped to avoid bubbles getting trapped in the deposit. Our preliminary results showed that there is a very strong influence of the voltage applied, and the separation distance between the electrodes, over the width and height of the structures deposited. Working with aqueous suspensions is more suitable than with organic solvents from the environmental point of view. More work needs to be done in this direction to improve the quality of the deposits and to fine-tune the experimental conditions.