Electrical discharge machining of (NbxZr1-x)B2-SiC composites

Olivier Malek; Jozef Vleugels; Kim Vanmeensel; Wouter Van Renterghem; Bert Lauwers; Sven Van den Berghe

doi:10.1016/j.procir.2013.03.103

Electrical discharge machining of (NbxZr1-x)B2-SiC composites

Olivier Malek, Jozef Vleugels, Kim Vanmeensel, Wouter Van Renterghem, Bert Lauwers, Sven Van den Berghe

Research output › peer-review

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.

Original language	English
Pages (from-to)	187-192
Journal	Procedia CIRP
Volume	6
DOIs	https://doi.org/10.1016/j.procir.2013.03.103
State	Published - May 2013
Event	17th CIRP Conference on Electro Physical and Chemical Machining (ISEM) - Leuven Duration: 8 Apr 2013 → 12 Apr 2013

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10.1016/j.procir.2013.03.103License: Other

Cite this

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title = "Electrical discharge machining of (NbxZr1-x)B2-SiC composites",

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.",

keywords = "Ceramics, Sintering, Electrical Discharge Machining, X-ray photo emission spectroscopy, Surface",

author = "Olivier Malek and Jozef Vleugels and Kim Vanmeensel and {Van Renterghem}, Wouter and Bert Lauwers and {Van den Berghe}, Sven",

note = "Score = 10; 17th CIRP Conference on Electro Physical and Chemical Machining (ISEM) ; Conference date: 08-04-2013 Through 12-04-2013",

year = "2013",

month = may,

doi = "10.1016/j.procir.2013.03.103",

language = "English",

volume = "6",

pages = "187--192",

journal = "Procedia CIRP",

issn = "2212-8271",

publisher = "Elsevier",

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TY - JOUR

T1 - Electrical discharge machining of (NbxZr1-x)B2-SiC composites

AU - Malek, Olivier

AU - Vleugels, Jozef

AU - Vanmeensel, Kim

AU - Van Renterghem, Wouter

AU - Lauwers, Bert

A2 - Van den Berghe, Sven

N1 - Score = 10

PY - 2013/5

Y1 - 2013/5

N2 - 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.

AB - 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.

KW - Ceramics

KW - Sintering

KW - Electrical Discharge Machining

KW - X-ray photo emission spectroscopy

KW - Surface

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_129299

UR - http://knowledgecentre.sckcen.be/so2/bibref/10314

U2 - 10.1016/j.procir.2013.03.103

DO - 10.1016/j.procir.2013.03.103

M3 - Article

SN - 2212-8271

VL - 6

SP - 187

EP - 192

JO - Procedia CIRP

JF - Procedia CIRP

T2 - 17th CIRP Conference on Electro Physical and Chemical Machining (ISEM)

Y2 - 8 April 2013 through 12 April 2013

ER -