Nano Archive

Effect of surfactant and saccharin addition on the morphology and wear behavior of Ni-Al2O3 nano-composite coatings

Amadeh, A. A. and Lari, S. M. and Moradi, H. (2008) Effect of surfactant and saccharin addition on the morphology and wear behavior of Ni-Al2O3 nano-composite coatings. INTERNATIONAL JOURNAL OF MODERN PHYSICS B , 22 (18-19). 3037-3045 . ISSN 0217-9792

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Abstract

Nano-composite Ni-Al2O3 coatings due to their good wear and corrosion resistance have been widely used in different industries. The agglomeration of nano-particle ceramics in the electrolyte is a serious problem in electrodeposition process that leads to the presence of agglomerated particles in the coating and influences its properties. Using a suitable surfactant can be helpful to control the agglomeration of ceramic particles. In this research nano-composite Ni-Al2O3 coating has been deposited from an alumina containing Watts bath using a square pulse current and Sodium Dodecyl-Sulphate (SDS) as surfactant. It was observed that SDS addition has an important effect on the reduction of particles agglomeration and increases the incorporation of finer particles into the coating. Addition of saccharin to the electrolyte, decreases the grain size and the alumina content in the coating, and also, leads to lower agglomeration and better distribution of ceramic particles. Moreover, the synergistic addition of SDS and saccharin, decreases the grain size, increases the hardness and wear resistance, but has no effect on the crystallographic texture of the coating.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7351
Deposited By:JNCASR
Deposited On:04 Nov 2009 07:48
Last Modified:04 Nov 2009 07:48

Repository Staff Only: item control page