Hair from dyslexic children, analyzed by flameless atomic absorption spectrometry, showed significantly higher concentrations of magnesium and copper than did hair from control subjects. The hair from dyslexic children also contained significantly higher concentrations of aluminum and cadmium than that from control children; the cadmium concentration exceeded the normal acceptable range. There ...

Male, born in 1962, Ph.D, Professor. He obtained his Ph.D at Nanchang University. His research and teaching interests mainly focus on magnesium/aluminum alloys and investment casting process. He has published more than 200 papers by now. E-mail: [email protected] Received: 2011-01-25; Accepted: 2011-05-04 *Yan Hong *Yan Hong, Hu Xiaowu, Nie Qiao and Chen Lei (School of Mechanical-Electrical En...

Magnesium is the eighth-most abundant element in world and its alloys have a widespread application various industries such as electronic transport (i.e., air, land, sea) engineering, due to their significant mechanical properties, excellent machinability, high strength weight ratios, low cost. Although monolithic Mg metal known lightest industrial (magnesium density 30% less than of aluminum, ...

Metal organic contacts are at the basis of devices such as organic light emitting diodes (OLEDs). Here, we report a theoretical investigation of the chemical interaction between a Mg atom and an organic film made of tris(8-hydroxyquinoline)aluminum (Alq3) molecules. The latter is modeled either by an isolated molecule or by a bulk crystal. Using first-principles molecular dynamics for structura...

Dense hydrous magnesium silicate (DHMS) phases play a crucial role in transporting water in to the Earth's interior. A newly discovered DHMS, phase H (MgSiO4H2), is stable at Earth's lower mantle, i.e., at pressures greater than 30 GPa. Here we report the crystal structure and elasticity of phase H and its evolution upon compression. Using first principles simulations, we have explored the rela...

MgAlON composites have been prepared under nitrogen atmosphere, using Dengfeng calcined alumina w(Al2O3) = 85 % and other raw material, in order to reduce the production cost and make full use of the rich bauxite resources in Henan Province. The effects of the different sintering temperature and different matrix content on the preparation and properties of MgAlON composites were investigated. T...

Welding of dissimilar magnesium alloys and aluminum alloys is an important issue because of their increasing applications in industries. In this document, the research and progress of a variety of welding techniques for joining dissimilar Mg alloys and Al alloys are reviewed from different perspectives. Welding of dissimilar Mg and Al is challenging due to the formation of brittle intermetallic...

Magnesium alloys, due to their attractive characteristics, are being utilized as lightweight structural materials in aerospace, automotive, and various other industries. Further design flexibility can be obtained by joining the Mg alloys with outstanding performance, such aluminum alloys. In this study, Al-6062 AZ31B have been joined through friction stir welding (FSW) using high-speed steel (H...

Reductions in exchangeable calcium and magnesium increase aluminum concentrations have been shown soils impacted by acid deposition, including at four sites on the Allegheny Plateau, PA, USA, sampled 1967 1997 during a period of peak deposition. We repeated sampling these 2017 to evaluate changes more recent when there has strong decline The uppermost horizons, Oa A horizons where humified orga...