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Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites

An in situ Cu-NbC composite was successfully synthesized from Cu, Nb, and C powders using ball milling and high pressure torsion (HPT) techniques. The novelty of the new approach, HPT, is the combination of high compaction pressure and large shear strain to simultaneously refine, synthesize, and con...

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Main Authors: Long, B.D., Othman, R., Zuhailawati, H., Umemoto, M.
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2014
Subjects:
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/11830/1/LongBD_%282014%29.pdf
http://eprints.um.edu.my/11830/
http://www.hindawi.com/journals/amse/2014/160580/
http://dx.doi.org/10.1155/2014/160580
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spelling my.um.eprints.118302017-07-07T05:07:31Z http://eprints.um.edu.my/11830/ Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites Long, B.D. Othman, R. Zuhailawati, H. Umemoto, M. TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery An in situ Cu-NbC composite was successfully synthesized from Cu, Nb, and C powders using ball milling and high pressure torsion (HPT) techniques. The novelty of the new approach, HPT, is the combination of high compaction pressure and large shear strain to simultaneously refine, synthesize, and consolidate composite powders at room temperature. The HPTed Cu-NbC composite was formed within a short duration of 20 min without Fe contamination from the HPT’s die. High porosity of 3–9%, Fe and niobium oxidations, from grinding media and ethanol during ball milling led to low electrical conductivity of the milled Cu-NbC composite. The electrical conductivity of the HPTed Cu-NbC composite showed a value 50% higher than that of milled Cu-NbC composite of the same composition. Hindawi Publishing Corporation 2014 Article PeerReviewed application/pdf en http://eprints.um.edu.my/11830/1/LongBD_%282014%29.pdf Long, B.D. and Othman, R. and Zuhailawati, H. and Umemoto, M. (2014) Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites. Advances in Materials Science and Engineering, 2014. pp. 1-6. ISSN 1687-8434 http://www.hindawi.com/journals/amse/2014/160580/ http://dx.doi.org/10.1155/2014/160580
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
spellingShingle TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Long, B.D.
Othman, R.
Zuhailawati, H.
Umemoto, M.
Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
description An in situ Cu-NbC composite was successfully synthesized from Cu, Nb, and C powders using ball milling and high pressure torsion (HPT) techniques. The novelty of the new approach, HPT, is the combination of high compaction pressure and large shear strain to simultaneously refine, synthesize, and consolidate composite powders at room temperature. The HPTed Cu-NbC composite was formed within a short duration of 20 min without Fe contamination from the HPT’s die. High porosity of 3–9%, Fe and niobium oxidations, from grinding media and ethanol during ball milling led to low electrical conductivity of the milled Cu-NbC composite. The electrical conductivity of the HPTed Cu-NbC composite showed a value 50% higher than that of milled Cu-NbC composite of the same composition.
format Article
author Long, B.D.
Othman, R.
Zuhailawati, H.
Umemoto, M.
author_facet Long, B.D.
Othman, R.
Zuhailawati, H.
Umemoto, M.
author_sort Long, B.D.
title Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
title_short Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
title_full Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
title_fullStr Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
title_full_unstemmed Comparison of Two Powder Processing Techniques on the Properties of Cu-NbC Composites
title_sort comparison of two powder processing techniques on the properties of cu-nbc composites
publisher Hindawi Publishing Corporation
publishDate 2014
url http://eprints.um.edu.my/11830/1/LongBD_%282014%29.pdf
http://eprints.um.edu.my/11830/
http://www.hindawi.com/journals/amse/2014/160580/
http://dx.doi.org/10.1155/2014/160580
_version_ 1643689156463820800
score 13.211869

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