The nano-wetting aspect at the liquid-metal/SiC interface

Abstract

The wetting process on the nano-scale, as an initial and essential step in liquid metal/ceramic joining, is discussed here. Thanks to recent breakthroughs in experimental techniques with nanometre resolution, questions posed several decades ago are being looked at again. Despite recorded facts on acting mechanisms, the published results are very diverse due to the variety of materials and their structures, as well as experimental conditions, so the modeling is inevitable for process development and to overcome the multi-scale influencing parameters issues. A nano-scale wetting model have been proposed and tested on results obtained in a liquid-metal/SiC system that was published in the literature. Keywords: wetting, modelling, nano-scale, metal/ceramic interface Razlo`en je postopek omakanja na nanonivoju kot za~etni in bistveni del pri spajanju staljena kovina-keramika. Zaradi sedanjih, prelomnih eksperimentalnih tehnik do nanometrske resolucije se ponovno pojavljajo vpra{anja, stara ve~desetletij. Kljub dejstvom glede delujo~ih mehanizmov so objavljeni rezultati zelo razli~ni zaradi razli~nosti materialov in njihovih struktur, kot tudi eksperimentalnih razmer. Zato je neizogibno modeliranje razvoja procesov, da se prese`e {tevilne ve~dimenzijske vplivne parametre. Na podlagi literaturnih podatkov iz sistema staljena kovina-SiC je bil predlo`en in preizku{en model omakanja na nanonivoju.