Electrochemical boriding of the graphite plates in potassium cryolite based electrolytes was studied. The were carried out a cell with vertical electrodes. procedure included 2 stages: 1) electrolysis KF–AlF3–KBF4 melt (CR=1.3) at low current density (0.01–0.02 A/cm2), required for boron reduction, 700 and 750 °C; 2) KF–AlF3–Al2O3 higher (0.2 aluminum reduction. optimal conditions electrodeposi...

Aluminum doped diamond-like carbon (DLC:Al) thin films were deposited on n-Si(100) substrates by co-sputtering a graphite target under a fixed DC power (650 W) and an aluminum target under varying DC power (10-90 W) at room temperature. The structure, adhesion strength and surface morphology of the DLC:Al films were characterized by X-ray photoelectron spectroscopy (XPS), micro-scratch testing ...

In this paper, an experiment is conducted to optimize the kerf width of wire electrical discharge machining (WEDM) on Aluminum hybrid composite with Zinc coated brass wire using Taguchi method. Aluminum metal matrix composites (MMCs) reinforced with silicon carbide particulate (SiCp) find several applications due to their improved mechanical properties for a wide variety of aerospace and automo...

Determinations of aluminum (Al) in serum are performed routinely by laboratories through customer-validated applications. Graphite furnace atomic absorption spectroscopy (GFAAS) is one of only a few routine techniques with a dynamic range sensitive enough to be used clinically in customervalidated applications to measure Al in serum. There are a few specific analytical challenges that an analys...

Composites based on graphite benefit a number of applications where low density, high-temperature strength and thermal shock resistant materials are needed. Carbon composites are currently used in applications such as thermal barriers for reentry vehicles and aircraft brakes[1,2]. However, despite the unique hightemperature properties of these composites, their susceptibility to gasification in...

background: contamination of water by toxic chemicals has become commonly recognized as an environmental concern. based on our clinical observation in mashhad, northeastern iran, many people might be at risk of exposure to high concentrations of toxic heavy metals in water. because wastewater effluents as well as water wells have been commonly used for irrigation over the past decades, there ha...

backgrounds and aims: aluminum and in particular its compounds make up a large proportion of the pollutants coming from the aluminum foundry. in several studies conducted on the harmful effects of aluminum in recent decades, it has been identified as a neurotoxic metal. chronic occupational exposure through inhalation of dust is a common problem in aluminum foundries. investigation of the expos...

In the present work, microstructure and mechanical properties of microwave welded Al6061-6%Graphite-SiC hybrid metal matrix composites (MMC) were investigated. The welding was carried out using principle heating Al6061 powder as an interfacial material. domestic oven having frequency 2.45 GHz 900 W power used for experiments. charcoal a susceptor during process. MMCs Al6061-6%Gr-SiC developed t...