Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests

This work investigates dry micro-electro-discharge machining (lEDM) of vertically aligned carbon nanotube (CNT) forests that are used as cathodes in the process, as opposed to conventional lEDM where the material to be machined forms the anode, toward achieving higher precision in the patterned m...

Full description

Bibliographic Details
Main Authors:	Saleh, Tanveer, Dahmardeh, Masoud
Format:	Article
Language:	English
Published:	American Institute of Physics 2011
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/1/JAP_TS_CNTforest.pdf

id	iium-30326
recordtype	eprints
spelling	iium-303262013-08-05T05:41:07Z http://irep.iium.edu.my/30326/ Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests Saleh, Tanveer Dahmardeh, Masoud TA Engineering (General). Civil engineering (General) This work investigates dry micro-electro-discharge machining (lEDM) of vertically aligned carbon nanotube (CNT) forests that are used as cathodes in the process, as opposed to conventional lEDM where the material to be machined forms the anode, toward achieving higher precision in the patterned microstructures. The new configuration with the reversed polarity is observed to generate higher discharge currents in the process, presumably due to effective field-emission from CNTs. This effect allows the process to be performed at very low discharge energies, approximately 80�smaller than in the conventional normal-polarity case, with the machining voltage and tolerance down to 10V and 2.5 lm, respectively, enabling high-precision high-aspect-ratio micropatterning in the forests. The new approach is also demonstrated to make the process faster, cleaner, and more stable than conventional processing. Spectroscopic analyses of the forests processed by reverse lEDM show no evidence of significant crystalline deterioration or contamination in the CNTs. American Institute of Physics 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/30326/1/JAP_TS_CNTforest.pdf Saleh, Tanveer and Dahmardeh, Masoud (2011) Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests. Journal of Applied Physics, 110 (10). ISSN 0021-8979 http://jap.aip.org/resource/1/japiau/v110/i10/p103305_s1 10.1063/1.3663438
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Saleh, Tanveer Dahmardeh, Masoud Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
description	This work investigates dry micro-electro-discharge machining (lEDM) of vertically aligned carbon nanotube (CNT) forests that are used as cathodes in the process, as opposed to conventional lEDM where the material to be machined forms the anode, toward achieving higher precision in the patterned microstructures. The new configuration with the reversed polarity is observed to generate higher discharge currents in the process, presumably due to effective field-emission from CNTs. This effect allows the process to be performed at very low discharge energies, approximately 80�smaller than in the conventional normal-polarity case, with the machining voltage and tolerance down to 10V and 2.5 lm, respectively, enabling high-precision high-aspect-ratio micropatterning in the forests. The new approach is also demonstrated to make the process faster, cleaner, and more stable than conventional processing. Spectroscopic analyses of the forests processed by reverse lEDM show no evidence of significant crystalline deterioration or contamination in the CNTs.
format	Article
author	Saleh, Tanveer Dahmardeh, Masoud
author_facet	Saleh, Tanveer Dahmardeh, Masoud
author_sort	Saleh, Tanveer
title	Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
title_short	Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
title_full	Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
title_fullStr	Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
title_full_unstemmed	Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
title_sort	field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests
publisher	American Institute of Physics
publishDate	2011
url	http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/ http://irep.iium.edu.my/30326/1/JAP_TS_CNTforest.pdf
first_indexed	2023-09-18T20:44:28Z
last_indexed	2023-09-18T20:44:28Z
_version_	1777409582450081792

Field-emission-assisted approach to dry micro-electro-discharge machining of carbon-nanotube forests

Similar Items