Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite

Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite

The present work investigates characteristics and properties of in situ nanostructured copper-tungsten carbide composite prepared by mechanical alloying (MA) and powder metallurgy (PM). Elemental powders of Cu (copper), W (tungsten) and graphite (C) were milled in a planetary ball mill using differe...

Full description

Saved in:
Bibliographic Details
Main Author: Yusoff, Mahani
Format: Thesis
Language:English
Published: 2012
Subjects:
TN1-997 Mining engineering
Metallurgy
Online Access:http://eprints.usm.my/41987/1/MAHANI_BINTI_YUSOFF.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
id my-usm-ep.41987
record_format uketd_dc
spelling my-usm-ep.419872019-04-12T05:26:21Z Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite 2012-05 Yusoff, Mahani TN1-997 Mining engineering. Metallurgy The present work investigates characteristics and properties of in situ nanostructured copper-tungsten carbide composite prepared by mechanical alloying (MA) and powder metallurgy (PM). Elemental powders of Cu (copper), W (tungsten) and graphite (C) were milled in a planetary ball mill using different ball size, milling time and milling speed. Then the product was compacted at different pressures and sintered at different temperatures and times. In situ tungsten carbide phases (WC and W2C) were only present after a combination of MA and sintering. W2C was first to be observed and the formation of WC began with longer milling times and speeds, in accordance to a decreased crystallite size and an increased of internal strain of Cu during MA. W2C was formed as a result of C deficiency whereas WC through transformation from W2C to WC during sintering. 2012-05 Thesis http://eprints.usm.my/41987/ http://eprints.usm.my/41987/1/MAHANI_BINTI_YUSOFF.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuteraan Bahan & Sumber Mineral
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic TN1-997 Mining engineering
Metallurgy
spellingShingle TN1-997 Mining engineering
Metallurgy
Yusoff, Mahani
Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
description The present work investigates characteristics and properties of in situ nanostructured copper-tungsten carbide composite prepared by mechanical alloying (MA) and powder metallurgy (PM). Elemental powders of Cu (copper), W (tungsten) and graphite (C) were milled in a planetary ball mill using different ball size, milling time and milling speed. Then the product was compacted at different pressures and sintered at different temperatures and times. In situ tungsten carbide phases (WC and W2C) were only present after a combination of MA and sintering. W2C was first to be observed and the formation of WC began with longer milling times and speeds, in accordance to a decreased crystallite size and an increased of internal strain of Cu during MA. W2C was formed as a result of C deficiency whereas WC through transformation from W2C to WC during sintering.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Yusoff, Mahani
author_facet Yusoff, Mahani
author_sort Yusoff, Mahani
title Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
title_short Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
title_full Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
title_fullStr Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
title_full_unstemmed Processing, Microstructure And Properties Of In Situ Copper Reinforced Tungsten Carbide Nanostructured Composite
title_sort processing, microstructure and properties of in situ copper reinforced tungsten carbide nanostructured composite
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Kejuteraan Bahan & Sumber Mineral
publishDate 2012
url http://eprints.usm.my/41987/1/MAHANI_BINTI_YUSOFF.pdf
_version_ 1747821009090641920

Similar Items