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- W1024628051 abstract "Sikerult elsőkent eddig nem ismert Co-Sn-Fe terner valamint uj Sn-Fe biner otvozeteket előallitani nagy aramsűrűseget, specialis adalekanyagot es nagysebessegű elektrolit-aramoltatast alkalmazo elektrokemiai levalasztas utjan, amely bevonatok a Li elektrodu telepekben nagyhatasfoku elektrodkent valamint kornyezetbarat korrozioallo anyagokkent lehetnek alkalmazhatok. Az otvozeteknek a 57Fe valamint 119Sn Mossbauer-spektroszkopiai vizsgalata az előallitasi parameterek fuggvenyeben tobbek kozott azt mutatta, hogy az otvozetek tulnyomo reszben uj, eddig nem ismert fazisokbol allnak. Ezek termikus uton nem allithatok elő es nem szerepelnek az egyensulyi fazisdiagramban sem. A Sn-Co-Fe terner es az Sn-Fe biner otvozetek amorf szerkezetűek es ferromagnesesek. Sikerult olyan uj elektrokemiai előallitasi parametereket talalnunk metastabilis fazisokat tartalmazo, korrozioallo, szupravezető kompozit huzalokban alkalmazhato Fe-Cr-Ni otvozetbevonatok előallitasara, amelyeknel ezen femretegek rovid tavu kemiai rendezettsege, elem- es fazisosszetetele, morfologiaja es magneses parameterei celszerűen es finoman beallithatok az elektrokemiai parameterek alkalmas megvalasztasaval. Az amorf vas kepződeset mutattuk ki elektrokemiailag levalasztott α-Fe bevonatokon nagyenergiaju nehezion besugarzas hatasara első izben. Azt is sikerult kimutatnunk a 57Fe Mossbauer-spektroszkopia segitsegevel, hogy nemcsak a nagyenergiaju (250 MeV) hanem a kisenergiaju (40 keV) nehezion besugarzas is reszleges amorf Fe kialakulashoz vezet parologtatott α-Fe vekonyretegekben. | We have succeeded to prepare previously not known Co-Sn-Fe ternary and new Sn-Fe binary alloys by electrochemical depositions using high current density, special complexant and high speed of electrolyte circulation. These coatings can be applied as high performance electrodes in Li-batteries and environmentally acceptable corrosion resistant materials. 57Fe and 119Sn Mossbauer investigations of these alloys showed among others that the alloys consist dominantly of new, previously not known metastable phases which never occur in thermally prepared alloys and can not be expected from the equilibrium phase diagram. These Co-Sn-Fe and Sn-Fe alloys proved to be amorphous and ferromagnetic. We have succeeded to find electrochemical parameters for the preparation of corrosion resistant Fe-Ni-Cr and Ni-Cr alloy coatings containing metastable phases, which alloys can be applied as substrates in superconducting composite wires. The chemical short range order, elemental and phase composition, morphology and magnetic properties of the metal layers can be appropriately and finely adjusted by the help of suitably chosen electrochemical parameters. We have shown the formation of amorphous Fe in electrochemically deposited a-Fe coatings due to the irradiation with energetic heavy ions. By the help of Mossbauer spectroscopy we have also shown the partial formation of amorphous iron in evaporated a-Fe thin films not only due to the energetic (246 MeV) but also due to the low energy (40 keV) heavy ion irradiation." @default.
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- W1024628051 date "2007-01-01" @default.
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- W1024628051 title "Elektrokémiailag-, párologtatással, ionkeveréssel és gyorshűtéssel előállított, mikrokristályos, amorf és kristályos ötvözetbevonatok és másként előállított rokonanyagok összehasonlító vizsgálata Mössbauer-spektroszkópiával és egyéb módszerekkel = Comparative investigations of electrochemically prepared, evaporated, ion beam mixed, rapidly quenched and ball milled microcrystalline, amorphous and crystalline alloys and related compounds by Mössbauer spectroscopy and other methods" @default.
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