The influence of Al and Zn by 10 wt.% as alloying elements on the electrochemical corrosion behaviour Cu-based alloy in 0.1 M NaCl solution is examined. Results from both impedance spectroscopy method potentiodynamic techniques indicate that occurred at a higher rate for added alloys than pure Cu, where shows worst performance. Copper forms stable protective layer Cu2O, CuO, result, has lower r...

There is a growing concern that dietborne metal toxicity might be important in aquatic ecosystems. However, the science behind this matter is insufficiently developed to explicitly and accurately account for this in metal regulation or risk assessment. We investigated the effects of a chronic exposure of Daphnia magna to an elevated level of Cu (3000 microg Cu/g dry wt) in their diet (the green...

Microstructural length scales, such as dendritic spacings in cast metallic alloys, play an essential role the properties of structural components. Therefore, quantitative prediction scales through simulations is important to design novel alloys and optimize processing conditions integrated computational materials engineering (ICME). Thus far, comparisons between experiments primary dendrite arm...

Sn–Ag–Cu composite solders reinforced with nano-sized, nonreacting, noncoarsening 1 wt% TiO2 particles were prepared by mechanically dispersing TiO2 nano-particles into Sn–Ag–Cu solder powder and the interfacial morphology of the solder and flexible BGA substrates were characterized metallographically. At their interfaces, different types of scallop-shaped intermetallic compound layers such as ...

Addition of TiO2 to a polytetrafluoroethylene (PTFE) particle-dispersed composite contributes to the self-cleaning properties of the water-repellent composite. However, its application is limited to outdoor usage or under ultraviolet (UV) irradiation. In this study, a novel visible-light-sensitive photocatalytic and superhydrophobic material was developed by adding Cu/WO3 to a PTFE particulate ...

For the first time, using optical, scanning, and transmission electron microscopy X-ray phase analysis in combination with measurements of tensile mechanical properties, we obtained data on structural features polycrystalline shape-memory eutectoid Cu-Al-Ni-(B) alloys doped by aluminum (of 10 14 wt% Al total amount), nickel 3, 4, 4.5 Ni), boron (0.02–0.3 B) various compositions. The effect grai...

Abstract The Al contents play an exceedingly important role in Cu-Al system shape memory alloys (SMAs), and Cu-Al-Fe alloy represents the new development directions of SMAs. Cu-xAl-4Fe (x = 11, 13, 15 wt%) alloys, which take powder core wire with a structure resistant to element burning as additive manufacturing materials, were prepared by arc melt deposition process. In this work, as-deposited...

We have used focused ion beam (FIB) milling and scanning electron microscopy (SEM) to prepare samples of known thickness for measurement of the electron scattering elastic and inelastic mean free paths (EMFP and IMFP respectively) of three metallic glasses, Cu(64.5)Zr(35.5), Zr(50)Cu(45)Al(5), and Al(87)Y(7)Fe(5)Cu. After measuring the EMFP and IMFP in a scanning transmission electron microscop...