The paper studies the thermophysical properties of a Cu-Ti-C-B composite produced by self-propagating high-temperature synthesis (SHS) an initial mixture copper, titanium, boron carbide (B4C), and carbon powders. matrix is supersaturated solid solution titanium in copper lattice with Cu4Ti nanosized particles homogeneously precipitated under cooling. microhardness 450 HV 0.1. Particles (TiC) di...

Surfaces in an outpatient setting are exposed to multiple patients b ecome colonized with microorganisms. Copper and alloys containing greater than 60% copper reduce bacterial burdens on solid surfaces by 99.9% within 2 hours.! Copper surfaces have been found to substantially diminish the density of bacte ria to levels below those considered a risk to patients for the acquisition of an infectio...

The importance of promising composites in modern materials science is constantly increasing. use various fillers or additives associated with their influence not only on the defining properties composite, but also physical and mechanical characteristics material. In this case, distribution additive its wetting a polymer play an important role. problem highlighted article different copper-contai...

Abstract In this study, copper-based-Nb 1-x (Ti/Ta) x Se 2 composites were prepared by powder metallurgy, and Nb copper-based with different Ti/Ta doping atomic fractions studied. physical, electrical tribological properties. Among them, the amount of Ti Ta has an important influence on properties composite material. The can improve mechanical, copper matrix within a certain range, especially w...

In the present study the effect of phase volume fraction on the reinforcement of microstructure and tensile properties of composite extrusion process Al6061/SiC has been studied. For this purpose, the base alloy Al6061 using pure aluminum ingots, silicon, of Al-50% Mg, Al-10% Cr and a thin copper rod was prepared. Next, the composite Al6061/5% SiC, Al6061/10% SiC, Al6061/15% SiC and Al6061/20% ...

Electron beam butt welding of stainless steel (SS 304) and electrolytically tough pitched (ETP) copper plates was carried out according to central composite design of experiments. Three input parameters, namely accelerating voltage, beam current and weld speed were considered in the butt welding experiments of dissimilar metals. The weld-bead parameters, such as bead width and depth of penetrat...

The objective of this study was to evaluate the concentration of Cu, Zn, Cr and Pb in different species of fish collected in the estuarine and limnic regions of the São Gonçalo channel, located in the Patos-Mirim lagoon complex in the coastal plain of Rio Grande do Sul State (Southern Brazil) during 2013 (autumn, winter and spring) and 2014 (summer). Fish samples were decomposed in a digester b...

A copper/Q235 steel/copper composite block with excellent bonding interfaces was prepared by explosive welding which a promising technique to fabricate laminates. The microstructure and mechanical properties of the were investigated via tensile-shear test, optical microscope (OM), X-ray diffraction (XRD), scanning electron (SEM), back-scattered (EBSD). results showed that shear strength upper-i...

A voltammetric electronic tongue consisting of a composite metal base electrode array for discrimination of basic taste has been presented. The electrode array consisting of Gold, Nickel, Palladium, Copper and Glassy Carbon as working electrode, has been used for transforming information of taste substances into electric signal. The electrodes output show different patterns for chemical substan...