The interstellar extinction, polarization and emission in the high-latitude cloud toward HD 210121 have been explored in terms of a four-component core-mantle interstellar dust model. We assume that the dust content in this cloud is of Galactic plane origin and has been lifted to its current position either by some sort of (particle) destructive violent energetic expulsion (“Galactic fountain”)...

Catalytically grown carbon nanofibers (CNF) are a newly developed type of material produced from the decomposition of selected carbon-containing gases over metal particles. These materials consist of nano-sized graphite platelets separated a distance of at least 0.335 nm and stacked in various orientations with respect to the fiber axis. Such an arrangement results in a unique structure that is...

We present the electronic structure evolution from graphite oxide to thermally reduced graphite oxide. Most functional groups were removed by thermal reduction as indicated by high resolution X-ray photoelectron spectroscopy, and the electrical conductivity increased 6 orders compare with the precursor graphite oxide. X-ray absorption spectroscopy reveals that the thermally reduced graphite oxi...

Electric discharge machining is extensively used to process difficult cut materials such as superalloys, composite etc. The quality of can be improved by adding particles into the dielectric fluid which commonly known powder mixed electric (PMEDM). In present study, titanium and graphite are added effects powders have been analysed on material removal rate, surface roughness, microhardness morp...

Influence of different types surfactants on electrodeposition copper- and carbon-bearing (graphite, carbon nanotubes (CNTs)) composite powder has been experimentally investigated. The size particles decreased, corrosion resistance increased when were added. Addition cationic surfactant CTAB to the electrolyte with simultaneous ultrasonic treatment for CNTs dispersion gives maximum effect.

Many researches are focused on the tribological performances of pure vegetable oil in order to replace conventional mineral engine oils. This work investigates influence local moringa (noted VO) lubricants formed from a blend dodecane and graphite particles at ambient temperature. In first part, reduction about 50% friction properties is observed when adding small amounts (VO), which intended b...

To impart electrical conductivity on magnesium alloy micro-arc oxidation coatings, a graphite/epoxy conductive layer was prepared the surface of ceramic in this work, focusing wear behavior and corrosion resistance coating. At graphite weight 80 wt%, square coating decreased to 217.6 kΩ/□, it exhibited good resistance. Combined with distribution particles change resistance, we determined that m...

Aluminium metal matrix composites (AMMCs) gained an extensive popularity in different engineering fields monotonically due to their enhanced mechanical properties when compared traditional monolithic metals. In the present investigation were produced using liquid metallurgy technique with modified stir casting approach bottom pouring arrangement. Al 2214 aluminium have been successfully prepare...

Our direct density function-based simulations of Ru-, Ptand mixed Ru-Pt clusters on carbon-based supports reveal that substrates can mediate the PtRu5 particles [1]. Oblate structure of PtRu5 on C has been found [2]. Nevertheless, the cluster-substrate interface interactions are still unknown. In this work, we present the applications of combinations of quantitative zcontrast imaging and high r...

The aim of this study was to evaluate the acute lung toxicity of intratracheally instilled single-wall carbon nanotubes (SWCNT) in rats. The lungs of rats were instilled either with 1 or 5 mg/kg of the following control or particle types: (1) SWCNT, (2) quartz particles (positive control), (3) carbonyl iron particles (negative control), (4) phosphate-buffered saline (PBS) + 1% Tween 80, or (5) ...