Spherical Submicron-size Copper and Copper-tungsten Powders Prepared in RF Induction Thermal Plasma

An rf sustained argon and copper plasma for ionized physical vapor deposition of copper

Langmuir probe, optical emission spectroscopy, and biased quartz crystal microbalance measurements were used to investigate an argon and copper plasma used for ionized physical vapor deposition of copper. Copper vapor generated by a magnetron sputter discharge is ionized upon passing through an argon discharge excited by an internal rf induction antenna. Argon plasma characteristics such as ele...

Breakdown Studies in Tungsten and Copper Structures

“Turbulent” electrical transport in copper powders

– Compressed copper powder has a very large electrical resistance (1MΩ), due to the oxide layer on grains (100μm). We observe that its voltage-current U -I characteristics are nonlinear, and undergo an instability, from an insulating to a conductive state at relatively small applied voltages. Current through the powder is then noisy, and the noise has interesting selfsimilar properties, includi...

Copper Oxide Nanoparticles Prepared by Solid State Thermal Decomposition: Synthesis and Characterization

In this paper, we have focused on the preparation and characterization of copper oxide nanoparticles by solid state thermal decomposition of copper(I) iodide in the presence of thiosemicarbazone ligands without the need for a catalyst, employing toxic solvent, template or surfactant and complicated equipment, which makes it efficient, one-step, simple and environment-friendly. CuO nanoparticles...

Synthesis and characterization of Copper and Copper Oxide nanoparticles by thermal decomposition method

A simple method has been employed to synthesize Copper and Copper oxide nanoparticles from Copper (II) succinate precursor by thermal decomposition method using oleylamine as a capping agent. The particles synthesized with oleylamine and triphenylphosphine were well dispersed nanoparticles obtained from X-ray Diffraction (XRD). The Synthesized copper nanoparticles were characterized by UV-Visib...