Synthesis and Tribology Properties of Stearate-Coated Ag Nanoparticles.

Autor: Sun, Lei, Tao, Xiaojun, Zhao, Yanbao, Zhang, Zhijun
Předmět:
Zdroj: Tribology Transactions; Mar/Apr2010, Vol. 53 Issue 2, p174-178, 5p
Abstrakt: Stearate-coated silver nanoparticles were synthesized in water solutions through the chemical reduction method. The morphology, structure, and thermal properties of the coated Ag nanoparticles were investigated with transmission electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and differential thermal analysis. Their tribological properties were evaluated on a four-ball test machine. The rubbed surface was investigated by scanning electron microscopy. The results show that the stearate-coated Ag nanoparticles have an average particle size in the range of 8-10 nm, and the coated Ag nanoparticles as oil additives in liquid paraffin exhibit excellent tribological properties. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index