Synthesis of titanium-silver bimetallic nanoparticles by thermal plasma method

محورهای موضوعی : Journal of Theoretical and Applied Physics

Sahar Sheini ¹ , Shahrooz Saviz ² , Amir Hossein Sari ³

1 - Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 - Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
3 - Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran

تاریخ دریافت : 1400/07/29 تاریخ پذیرش : 1400/12/18 تاریخ انتشار : 1400/12/10

کلید واژه: plasma spray, Thermal spraying, Silver Nanoparticles, Titanium silver alloy, Coating layer,

چکیده مقاله :

In the present paper, the micron-size silver and titanium powder with desired weight ratios is used to produce the silver-titanium nanocomposite using the self-developed thermal plasma equipment. The mixture is fed into the plasma torch flame by the powder feed system and argon carrier gas. After evaporation, the particles are cooled inside the cooling chamber and collected from the surface of the water-cooled double-walled chamber. The production of Titanium-Silver bimetallic nanoparticles is achieved in two ways: the cooling chamber is once filled with argon and once with atmospheric air. The nanoparticles are analyzed using scanning electron microscope (SEM), Energy Dispersive X-ray Spectroscopy (EDS), and X-ray Diffraction (XRD) methods to identify the nanoparticle size distribution, morphology and chemical composition properties. The morphology of the produced nanocomposites is spherical and their average size is 30 nm. The results indicate that the average size of nanoparticles produced in the presence of air is smaller than those in the presence of argon