BackgroundProgressive multiple sclerosis is a chronic autoimmune condition of unknown aetiology and few therapeutic options. Human exposure to aluminium has been linked with multiple sclerosis and affected individuals are known to excrete unusually high amounts of aluminium in their urine. Silic...

The effect of silicon addition to aluminum on the thermophysical properties of Al was experimentally investigated. Thermal diffusivity, heat capacity, density, and thermal expansion of sintered Al-Si samples with Si content ranging 0–8 wt% were measured. For U-Mo/Al dispersion fuel for research...

High-silicon aluminum alloy (high-Si Al alloy) usually used as the electronic packaging materials on the radar on ships have a susceptibility to corrosion, reducing the life of radar on ships. How to improve the corrosion-resistance ability of high-Si Al alloy is still a challenge. In this paper...

Piston friction is the primary cause of power loss in automotive engines and thus reducing the friction on piston surface is crucial for the improvement of engine performance. In this work, the effects of laser shock peening on friction characteristics of JIS-AC8A aluminum-silicon alloy, a pisto...

Silica in rice hulls (rice hull silica) reacted with aluminum to synthesize silicon and alumina at the temperature of 900–1225 °C. Rice hull silica contained about 20 wt% in rice hulls is amorphous and has high surface area with fine particles. Reactivity of rice hull silica added potassium ca...

In this study, effects of nitrogen and aluminium dopant on the SiC crystal structure and polytype stability were investigated by density functional theory. With taking account of the stacking energy of additional bilayer, the carbon terminated surface as seed surface with nitrogen doped conditio...

Silicon tubes with small dimensions show to be a suitable material for sensors application as well as to other areas of nanotechnology, but its production is not trivial, because of the influence of different formation parameters and the most important of them could be pointed out to the substra...

Hypereutectic aluminum (Al)–silicon (Si) alloys with different Si contents were used to evaluate the effects of Si content on separation and purification by alternating electromagnetic directional solidification (AEM–DS) at 3 kHz. A relatively high pulling speed of 40 µm/s was used for improv...

The application of multiscale silver paste and bare copper could be a more economical way for power electronics. In this paper, bonding mechanism of die attachment on bare copper substrate using multiscale Ag paste containing nano- and micro-particles in air condition was clarified. After sinter...

Transfer and growth of pathogenic microorganisms must be prevented in many areas such as the clinical sector. One element of transfer is the adhesion of pathogens to different surfaces and the purpose of the present study was to develop and investigate the antibacterial efficacy of stainless ste...

Copper and silver ionisation is a widely accepted technique to abate and control Legionella bacteria in contaminated water. Currently two types of copper and silver ionisation systems are commercially available: (1) systems using separate high purity copper and silver electrodes and (2) systems ...

In this study, the electroless silver plating method was applied on the copper particles synthesized by mechanical milling process. The plating process was carried out at the temperature of 60 °C, at the pH of 11 and the stirring speed of 600 rpm to obtain uniform silver coating on the copper p...

High-strength, high-conductivity silver-copper composite wires were prepared by powder metallurgy, spark plasma sintering and room-temperature wire-drawing. Silver nanowires were mixed with a commercial micrometric copper powder (1, 5 and 10 vol% silver). The powders were consolidated by spark p...

Gold, silver, lead, zinc, and copper are valuable non-ferrous metals that paved the way for modern civilisation. However, the environmental impacts from their beneficiation stage was always overlooked. This paper analysed the life cycle environmental impacts from the beneficiation process of gol...

Transition metals, such as silver or copper, can be used to enhance the photoluminescence of rare-earth ions. In this work, a novel zinc-silicate glass containing holmium and ytterbium was prepared and subsequently doped with silver or copper by means of ion exchange. The concentration of transi...

Defective molybdenum disulfide monolayers, with up to three copper and silver atoms substituting sulfur atoms, were studied at a dispersion-corrected DFT level. By the first time, changes produced on electronic properties, reactivity, charge distribution and electrostatic potential by trapping t...

The substitution of “didymium” for yttrium in the 1-2-3 superconductor yielded a low-critical temperature superconductor (Tc≈ 40 K). The physical properties, i.e. electrical resistivity and magnetic susceptibility data, are presented for two different didymium products. The causes of this low...

A TEM study has been made to characterize the microstructure and composition of the phases in the Fe-didymium-B magnets. The main phase is the tetragonal RE2Fe14B phase. In all the samples observed, a triple junction fcc phase which frequently extended into two-grain junctions, was observed with...

This work evaluates the influence of single, double and triple filling of didymium, Ca and Ba in Fe4Sb12 as well as in Fe3CoSb12 on the thermoelectric performance. Various filling levels, as well as various preparation methods and nanostructuring were used to improve the thermoelectric performan...

I–V characteristics of sandwiched Al-didymium oxide-Al structures are studied for different thicknesses. The breakdown voltage increases and the dielectric strength decreases with increase of film thickness. Optical photomicrographs of the breakdown patterns during different stages of dc voltag...