The nature of trace element carriers contained in sewage and combined sewer overflow (CSO) was investigated by TEM-EDX-Electron diffraction and SEM-EDX. During dry weather, chalcophile elements were found to accumulate in sewer sediments as early diagenetic sulfide phases. The sulfurization of some metal alloys was also evidenced. Other heavy metal carriers detected in sewage include metal allo...

Zinc is considered to be a suitable element for the preparation of bioresorbable materials that can gradually degrade in human body without production toxic compounds and undesirable hydrogen gas. Zn characterized by much lower corrosion rate saline compared magnesium-zinc its alloys. Therefore, this work we investigate Zn-0.4Mg-0.4Ca-xMn alloys with 0, 0.2, 0.4, 0.6 0.8 1.1 wt. % Mn. The eleme...

The article presents the results of analysis new data on elemental composition non-ferrous metal products territory certain archaeological sites in Northern and Central Belarus. author distinguishes two main stages metalworking region: X–XIII centuries XIV–XVIII centuries. It is noted that period characterized by a significant predominance copper-zinc alloys with average high concentrations zin...

Molecular simulations are conducted to determine the limits of miscibility of a valence force field model for zinc-blende-structured In12x2yGaxAlyN semiconductor alloys. The transition matrix Monte Carlo method is used to calculate the free energy of the model alloys as a function of temperature and alloy composition ~considering both x and y ranging from zero to unity!. Analysis of the free-en...

The aim of this study is the thermal recovery of manganese and zinc from a mixture of zinc-carbon and alkaline spent batteries containing 40.9% of Mn and 30.1% of Zn after a preliminary physical treatment. Separation of the metals is carried out on the basis of their different phase change temperatures, the boiling point of zinc being 906°C and 1564°C that of Mn3O4, the main Mn-bearing phase in...