Atomic VolumeBulk AlloyThe composition dependence of the average atomic volume, as well as of the enthalpy of formation, was investigated for the aluminum-containing systems with the 3d transition metals and copper. The...M. EllnerI. Park...
Based on the Barrett-Joyner-Halenda (BJH) method, the cumulative pore volume and average pore size were ~0.84 cm3 g−1 and 10.3 nm for NPC, and 0.88 cm3 g−1 and 10.0 nm for Cu SASs/NPC. Raman spectra of NPC and Cu SASs/NPC displayed the two typical peaks at about 1390 cm...
The volume fraction of voids was calculated as 26% in the non-optimized sample with an average void equivalent diameter of ~ 32 μm. The frequency of the void diameters for the non-optimized sample is shown in Fig. 6c. For the optimized sample showing much smaller voids (typically < 20 ...
We subsequently performed compositional analysis of the 1.0LaB6-Cu using atom probe tomography (APT). Only La and B clusters were identified. Although the atomic ratio of B to La of the clusters appears less than 6:1 (Fig.3) due to the formation of surface boron hydride30and the trajector...
Structural and optical characterizations of Cu-doped QDs The Cu:CdSe QDs were synthesized using a published procedure;37see Methods for details. A representative transmission electron microscope (TEM) image shows an average diameter of 3.3 ± 0.4 nm for these Cu:CdSe QDs (Supplementary Fi...
Microstructural Evolution and Mechanical Properties of Ultrafine Grained Commercially Pure 1100 Aluminum Alloy Processed by Accumulative Roll-Bonding (ARB) The ARB process has been carried out up to seven cycles on a commercial purity 1100 aluminum alloy to obtain ultra-fine grains with the average gra...
we used a ball/anode mass ratio of 100 (which maximizes the amount of smaller particles) and the fraction with particle size lower than 0.15 mm, which showed a higher graphite content (obtained by difference) but with a low amount of Cu (an average of approximately 0.7%) that can improve...
Copper is an essential micronutrient for humans. A cross-sectional and comparative study was done to assess serum Cu levels and serum copper/zinc (Cu/Zn) ratio and its association with nutritional indicators in a series of children and adolescents with chronic diseases. Anthropometric, biochemical,...
Each crater was shot successively with 10 shots and an average spectrum was obtained. For each d, one crater was produced and the corresponding average spectrum was collected. Moreover, to ensure the same coupling efficiency between the plasma and the collector, a CCD camera and portable point ...
Copper is a chemical element; it has symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of...