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Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method

Oxide dispersion-strengthened copper has the ability to retain most of its properties at elevated temperatures. Among various processes, powder metallurgy route is ideal because of its efficiency in dispersing fine oxide particles. In this study, copper-alumina composites is produced through powder...

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Main Authors: Hussain, Zuhailawati, Koay, Han Keong
Format: Article
Language:English
Published: Penerbit UTM Press 2005
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/1424/1/JTDIS43A.pdf
http://eprints.utm.my/id/eprint/1424/
http://dx.doi.org/10.11113/jt.v43.753
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spelling my.utm.14242017-11-01T04:17:31Z http://eprints.utm.my/id/eprint/1424/ Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method Hussain, Zuhailawati Koay, Han Keong Q Science (General) Oxide dispersion-strengthened copper has the ability to retain most of its properties at elevated temperatures. Among various processes, powder metallurgy route is ideal because of its efficiency in dispersing fine oxide particles. In this study, copper-alumina composites is produced through powder metallurgy route whereby copper powder, which is the matrix, was mixed with alumina powder, which act as reinforcement. Powder mixtures with different compositions of alumina (2.5wt%, 5wt%, 7.5wt% and 10wt%) were prepared. The mixtures were then mixed either by (a) blending process for 45 minutes in a ball mill or (b) mechanical alloying for 45 minutes in a planetary mill. The mixture was then compacted at 200 MPa and sintered under argon atmosphere at 950°C for 1 hour. Results showed that mechanical alloying has produced Cu-Al2O3 composite with better hardness and lower electrical conductivity compared to those prepared by ball milling method Penerbit UTM Press 2005-12 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/1424/1/JTDIS43A.pdf Hussain, Zuhailawati and Koay, Han Keong (2005) Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method. Jurnal Teknologi A (43A). pp. 1-20. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v43.753
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Hussain, Zuhailawati
Koay, Han Keong
Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
description Oxide dispersion-strengthened copper has the ability to retain most of its properties at elevated temperatures. Among various processes, powder metallurgy route is ideal because of its efficiency in dispersing fine oxide particles. In this study, copper-alumina composites is produced through powder metallurgy route whereby copper powder, which is the matrix, was mixed with alumina powder, which act as reinforcement. Powder mixtures with different compositions of alumina (2.5wt%, 5wt%, 7.5wt% and 10wt%) were prepared. The mixtures were then mixed either by (a) blending process for 45 minutes in a ball mill or (b) mechanical alloying for 45 minutes in a planetary mill. The mixture was then compacted at 200 MPa and sintered under argon atmosphere at 950°C for 1 hour. Results showed that mechanical alloying has produced Cu-Al2O3 composite with better hardness and lower electrical conductivity compared to those prepared by ball milling method
format Article
author Hussain, Zuhailawati
Koay, Han Keong
author_facet Hussain, Zuhailawati
Koay, Han Keong
author_sort Hussain, Zuhailawati
title Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
title_short Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
title_full Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
title_fullStr Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
title_full_unstemmed Studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
title_sort studies on alumina dispersion-strengthened copper composites through ball milling and mechanical alloying method
publisher Penerbit UTM Press
publishDate 2005
url http://eprints.utm.my/id/eprint/1424/1/JTDIS43A.pdf
http://eprints.utm.my/id/eprint/1424/
http://dx.doi.org/10.11113/jt.v43.753
_version_ 1643643330135851008
score 13.211869

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