Title: Electrical discharge machining of (NbxZr1-x)B2-SiC composites
Authors: Malek, Olivier
Vleugels, Jef
Vanmeensel, Kim
Van Renterghem, Wouter
Lauwers, Bert
Issue Date: 26-Mar-2013
Publisher: Elsevier BV
Host Document: Procedia CIRP vol:6 pages:187-192
Conference: CIRP Conference on Electro Physical and Chemical Machining (ISEM) edition:17 location:Leuven, Belgium date:9-12 April 2013
Abstract: The interrelationships between microstructure, Electrical Discharge Machining (EDM) behavior and surface quality of stoichometrically mixed NbxZr1-xB2-SiC composites with x ranging from 0 to 1 with intervals of 0.25 have been investigated. The composites were fully densified by means of Pulsed Electric Current Sintering (PECS) and XRD measurements confirm full solubility of the two components. XPS measurements reveal the presence of respectively Nb2O5, ZrO2 or both at the EDM surface, which are responsible for a difference in material removal mechanisms (MRM) and surface quality. It is shown that the presence of transition metal oxides in the heat affected zone influence surface quality and material removal rate considerably.
ISSN: 2212-8271
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
Surface and Interface Engineered Materials
Faculty of Engineering Technology Services, Technology Campus De Nayer Sint-Katelijne-Waver

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