In this work, we have explored the feasibility of alveolar open-cell β-SiC foams as catalyst support for solar hydrogen production. For that purpose, Pt and Ru nanoparticles been obtained, by means photoassisted synthesis, on TiO2-coated tested in gas-phase production from water-ethanol mixtures a tubular reactor coupled to compound parabolic collector (CPC). Subnanometre-sized metal or metal/o...

This work has explored the surface modification of SiC submicron- and nanoparticles, its influence on particles' chemical behaviour deposition rate in electroplating composite Ni/SiC coatings. particles with different sizes (50, 60, 300 500 nm) were codeposited their “as-produced” state. The ζ-potential measurements alkaline titration for showed differences sizes, reporting pH buffering effect,...

In order to maintain ideal working conditions by reducing heat from the system, a certain mechanism must be put into place. This research aims investigate effects of nanofluids on performance microchannel heating components used in computer cooling methods. The mixture 25% ethylene glycol and 75% alkaline water is create fluids experiment. combination contains nanoparticles SiC, TiO2, ZnO. It b...

We describe the formation of SiC nanopowder using an atmospheric argon microwave plasma with tetramethylsilane (TMS) as precursor. The impact of several process conditions on the particle size of the product is experimentally investigated. Particles with sizes ranging from 7 nm to about 20 nm according to BET and XRD measurements are produced. The dependency of the particle size on the process ...

the accumulative roll bonding process is used as a severe plastic deformation technique to produce aluminum composite sheets with ultra fine structure. in this study the effect of simultaneous use mg and sic particles as reinforcements, on the tensile properties of the al-mg-sic hybrid compositeis studied. the al-mg-sic hybrid composites with different amounts of mg and sic contents were fabric...

The addition of SiC or TiC nanoparticles to polycrystalline alumina matrix has long been known as an efficient way of improving the mechanical properties of alumina-based ceramics, especially strength, creep, and wear resistance. Recently, new types of nano-additives, such as carbon nanotubes (CNT), carbon nanofibers (CNF), and graphene sheets have been studied in order not only to improve the ...

in this research the influence of adding sic on microstructure and electrical properties of zno-based nanocomposite varistors were investigated. sic was added with amounts of 10-0 mass% to zno-based varistor composition. it is found that sic allows reaching to high threshold voltage with formation of fine-grained zno.another important effect of adding sic is formation zn2sio4 (willemite) on the ...