Faculty of ChemistryUniversity of WrocławF. Joliot-Curie 1450-383 Wrocław, PolandPhone: +48 71 375 7235 Fax: +48 71 328 23 48 Department of Metallurgy and Materials Engineering (MTM)Katholieke Universiteit Leuven Kasteelpark Arenberg 44 bus 2450B-3001 Heverlee, Belgium