Microchannel plate (MCP) as a key part is a kind of electron multiplied device applied in many scientific fields. Oxide thin films such as zinc oxide doped with aluminum oxide (ZnO:Al2O3) as conductive layer and pure aluminum oxide (Al2O3) as secondary electron emission (SEE) layer were prepared in the pores of MCP via atomic layer deposition (ALD) which is a method that can precisely control t...

running the industrial components at a proper temperature is always a big challenge for engineers. internal combustion engines are among these components in which temperature plays a big role in their performance and emissions. with the development of new technology in the fields of ‘nano-materials’ and ‘nano-fluids’, it seems very promising to use this technology as a coolant in the internal c...

Nano-metallic oxide particles have been found to be potentially effective microstructural reinforcements for cement mortar and become a research hotspot in recent years nano-modification technology of building materials. However, different conclusions obtained due various researchers used methods, which resulted deficiency the performance comparison between nano-metallic particles. In present s...

Polymeric nanocomposites are an emerging research topic, as they improve fiber-reinforced composites’ thermo-mechanical and tribological properties. Nanomaterials electrical thermal conductivity provide excellent wear friction resistance to the polymer matrix material. In this work, a systematic study was carried out examine tensile hardness properties of carbon fiber epoxy composite comprising...

The present work deals with the mechanical properties of hybrid nanocomposites made epoxy/glass fibre dispersed different weight percentages nano-α-Al2O3 powder . nanoparticles were synthesized by a high energy ball milling technique (60 and 200 nm).. effect size content (wt%) on properties, such as tensile, flexural, interlaminar shear stress (ILSS) hardness was investigated. addition enhanced...

Thermal enhancement of a single mini channel in Proton Exchange Membrane Fuel Cell (PEMFC) cooling plate is numerically investigated. In this study, low concentration of Al2O3 in Water Ethylene Glycol mixtures is used as coolant in single channel of carbon graphite plate to mimic the mini channels in PEMFC cooling plate. A steady and incompressible flow with constant heat flux is assumed in the...

agal2o3 nanocomposite were synthesized by solution combustion technique using ammonium carbonate as a new fuel under simultaneous combustion of alumina and silver particles condition. samples prepared with different amount of silver, were characterized by xrd, bet, sem and optical absorption measurements. xrd analysis was used to determine the change in phase and size of the synthesized nanopar...

Friction stir processing was applied for fabricating an aluminum alloy based hybrid nano composite reinforced with nano sized Al2O3 and micro sized graphite particles. A mixture of Al2O3 and graphite particles was packed into a groove with 1 mm width and 4.5 mm depth, which had been cut in 5083 aluminum plate of 10 mm thick. Packed groove was subjected to friction stir processing in order to im...

Se ha estudiado el comportamiento tribológico de materiales compuestos matriz metálica aluminio (AA5083)/nano-Al2O3 con un porcentaje refuerzo variable 2, 4, 6 y 8% en peso partículas nano-Al2O3. Los Al/nano-Al2O3 se prepararon utilizando una ruta colada por agitación. Las imágenes microscopía electrónica barrido (MEB) los sugirieron dispersión casi uniforme las nanopartículas la Al. El al desg...

In recent years, the effects of heterogeneous catalysts for the oxidation of organic and inorganic pollutants in industrial wastewaters are spread. Traditionally, these reactions are usually carried out using suspensions of photo-catalysts such as TiO2. A chemical method including TiCl4, Al(NO3)3, ethanol amine, ethyl acetoacetate and aqueous ammonia were used for the fabrication of TiO2-Al2O3 ...