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首页> 外文会议>The First International Conference on Electrophoretic Deposition: Fundamentals and Applications; Aug 18-22, 2002; Banff, Alberta, Canada >EFFECT OF PROCESSING PARAMETERS IN THE EPD KINETICS OF PARTICULATE SOLS PRODUCED BY BASIC CATALYSIS
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EFFECT OF PROCESSING PARAMETERS IN THE EPD KINETICS OF PARTICULATE SOLS PRODUCED BY BASIC CATALYSIS

机译：加工参数对碱性催化生产的颗粒土壤EPD动力学的影响

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摘要

Homogeneous thick silica coatings were prepared onto metals substrates by Electrophoretic Deposition (EPD) using particulate sols. The synthesis of sol was performed mixing tetraethoxysilane and methyltriethoxysilane under basic catalysis. In order to establish the condition of the synthesis and EPD process, the stability of the sol was studied under different conditions (temperature, atmosphere and concentration).The protective behaviour and the corrosion kinetic was studied on uncoated and coated substrates in 3.56 wt% NaCl and in 1N HCl using potentiodynamic techniques. The results showed a decrease in the pasivation current densities, which indicates the suitability of these coatings in metal protection.
机译：使用颗粒溶胶通过电泳沉积（EPD）在金属基材上制备均质的厚二氧化硅涂层。溶胶的合成是在碱性催化下混合四乙氧基硅烷和甲基三乙氧基硅烷进行的。为了建立合成和EPD工艺的条件，研究了溶胶在不同条件（温度，气氛和浓度）下的稳定性。研究了在3.56 wt％NaCl中未涂布和涂布的基材的保护行为和腐蚀动力学。在1N HCl中使用电位动力学技术。结果表明，空化电流密度降低，表明这些涂层在金属保护中的适用性。

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