Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Cu-Ag

Sortuj według:

Ogranicz wyniki do:

Zasoby przewidywane surowców metalicznych Polski na mapie w skali 1 : 200 000 – miedź, srebro, złoto, platyna i pallad w utworach cechsztyńskiej serii miedzionośnej

Oszczepalski S., Chmielewski A.

Przegląd Geologiczny

2015

Vol. 63, nr 9

534--545

Themost significant copper reserves in Poland are confined to sediment-hosted stratiform Kupferschiefer-type deposits that occur at the Zechstein/Rotliegend transition. Gradual depletion of shallow reserves in the Fore-Sudetic Monocline results in exploration of deeper beds, and the long-term challenges require new solutions for mining industry of the future and industrial market within the EU, to enable the reindustrialization of Europe. Latest studies of numerous drillhole cores strongly indicate that the Kupferschiefer series in SW Poland (outside the Lubin–Sieroszowice Copper District) contains a very large volume of prognostic, prospective and hypothetical resources. Thirty Cu-Ag prospects have been delineated (including six areas with prognostic resources, six with prospective resources, and 18 areas with hypothetical resources). Among the prospective areas, particular attention is paid to the areas with prognostic resources (Bia³o³êka, Grochowice, Krêpa, Kulów, Luboszyce), adjacent to the existing mines of the Lubin–Sieroszowice copper district. The areas of Nowiny, Mirków, Raciborowice and ¯arków are also interesting due to accessible depths, and the Bogdaj, Henrykowice, Janowo and Sulmierzyce areas due to considerable resources and reasonable depth. Extremely interesting is the possibility of extension of the Bytom Odrzañski deposit towards the Jany, Mozów and Wilcze prospective areas. Studies of archival drillhole cores taken outside the documented Cu-Ag Lubin–Sieroszowice deposit revealed Rote-Fäule-related Au-Pt-Pd mineralization in many localities of SW Poland. Fifteen Au prospective areas, accompanied by Pt-Pd mineralization, have been delineated. However, due to relatively low thickness and content, Au-Pt-Pd mineralization can be considered only as associated with the overlying Cu-Ag ores. It can be estimated that approximately 166 million Mg Cu and 269 thousand Mg Ag concentrated as predicted resources in prospects of SW Poland for future mining, which will be possible, when geological and technological barriers (depth, temperature, oil and gas) will meet economic trends in the world market.

Surface tension and density of Cu-Ag, u-In and Ag-In alloys

Kucharski M., Fima P., Skrzyniarz P., Przebinda-Stefanowa W.

Archives of Metallurgy and Materials

2006

Vol. 51, iss. 3

389-397

The sessile drop method has been used to measure density and surface tension of Cu, In and Cu-Ag, Cu-In and Ag-In mixtures. For pure metals (Cu, In) and for Cu-Ag, Ag-In alloys, the negative temperature coefficients of surface tension have been obtained. In case of Cu-In alloys, the temperature coefficients of surface tension take negative or positive values depending on composition. Experimental values of the surface tension of Cu-Ag, Cu-In and Ag-In are compared with those computed from Butler model and a fairly good agreement is observed.

Praca prezentuje wyniki pomiarów gęstości i napięcia powierzchniowego czystych metali (Cu, In) oraz stopów podwójnych Cu-Ag, Cu-In oraz Ag-In. Dla czystych metali (Cu, In) oraz dla stopów podwójnych Cu-Ag i Ag-In uzyskano ujemne wartości współczynników temperaturowych napięcia powierzchniowego. Natomiast w przypadku stopów Cu-In uzyskano, w zależności od składu, dodatnie lub ujemne wartości współczynników temperaturowych napięcia powierzchniowego. Dla wszystkich badanych stopów uzyskano zadawalającą zgodność pomiędzy wartościami napięcia powierzchniowego obliczonymi z modelu Butlera, a wynikami eksperymentu.