Electrophoretic deposition of titania nanoparticles: Wet density of deposits during EPD

Bulletin of Materials Science

关键词: Electrophoretic deposition (EPD);    electro-osmotic flow;    titania nanoparticles;    triethanolamine (TEA);    wet density.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Electrophoretic deposition (EPD) of titania nanoparticles was performed at different voltages and times. The wet density of deposits was calculated according to the Archimedes’ principle. The wet density as well as the electric field over the deposits increased with time and attained the plateau at longer times. The velocity at which particles attach to the deposit, strongly influences its wet density at initial times. However, the effect of electro-osmotic flow is dominant at longer times. The coating with higher wet density had the higher corrosion resistance in Ringer’s solution at 37.5 °C due to its closely packed and crack free microstructure.

【 授权许可】

CC BY