Author:Tshabalala, Lerato C; Pityana, Sisa L; Styne, J; Höfer, M; Schäfer, LDate:Sep 2012Laser machining which is a non-contact process that offers the advantage of machining advanced ceramics. In laser machining Si3N4, surface temperature is increased and controlled to evaporate the YSiAlON glassy phase of the Si3N4. However, ...Read more