A series of trilayers of sputtered Fe/Si/Fe were grown to study the interface characteristics and magnetic coupling between ferromagnetic Fe layers (30 Å thick) for Si spacer thickness (tSi) ranging from 15 Å to 40 Å. Grazing incidence x-ray diffraction, AFM, resistivity and x-ray photoelectron spectroscopy (XPS) measurements show substantial intermixing between the layers during deposition whi...

Recycling Al scraps is extremely important to achieve carbon neutrality. However, almost all impurity elements cannot be easily removed by oxidation and evaporation once dissolved in molten alloy. Therefore, it necessary develop an removal process Al. Iron one of the Al, which forms intermetallic compounds with On contrary, Fe immiscible Mg liquid state. These facts suggest that repulsive inter...

Blown-powder laser surface alloying was performed on the magnesium alloy AZ91D with Al-Si alloy powder to improve corrosion resistance. Characterization by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and x-ray diffraction (XRD) analysis revealed that intermetallic compounds (IMCs) of Mg2Si, Al12Mg17 and Al3Mg2 were formed in the matrix of α-Mg and Al solid solutions...

The effects of added Si and Fe on the rate of silicic acid uptake were examined during two cruises to the equatorial Pacific upwelling zone between 110uW and 140uW. Maximum uptake rates of Si (Vmax) were highly consistent with a mean of 0.026 6 0.007 h21(n 5 29), implying maximum diatom growth rates of ,0.6 d21. Halfsaturation constants for Si uptake (KS) also showed little variance, averaging ...