A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering

There have been many investigations on metal matrix microcomposites produced by conventional casting routes; however, in the past decade, the focus has shifted more toward nanocomposites produced via solid state routes. To have a realistic view of performance prediction and optimum design of such co...

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Main Authors:	Pakdel, Amir, Witecka, Agnieszka, Rydzek, Gaulthier, Dayangku Noorfazidah, Awang Sh'ri
Format:	Article
Language:	English
Published:	Elsevier Ltd 2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/1/fkm-2017-dayang-comprehensive%20microstructural%20analysis1.pdf

id	ump-13825
recordtype	eprints
spelling	ump-138252018-02-06T06:24:13Z http://umpir.ump.edu.my/id/eprint/13825/ A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri TJ Mechanical engineering and machinery There have been many investigations on metal matrix microcomposites produced by conventional casting routes; however, in the past decade, the focus has shifted more toward nanocomposites produced via solid state routes. To have a realistic view of performance prediction and optimum design of such composites, in this work Al matrix composites (AMCs) reinforced with WC microparticles, nanoparticles, and bimodal micro-/nano-particles were prepared by spark plasma sintering. The effects of particle size and concentration, and process variables (i.e. sintering temperature, duration, and pressure) on the evolution of microstructure, density and hardness of the composites were studied comprehensively. Full densification of AMCs with high particle concentration was problematic because of ceramic cluster formations in the microstructure. This effect was more emphasized in AMCs containing nanoparticles. AMCs with microparticles were more easily densified, but their hardness benefits were inferior. On the other hand, the mixture of micro- and nano-particles in Al-WC bimodal composites led to better matrix reinforcement integrity and an overall improvement in the microstructural properties. Finally, increasing the sintering temperature improved the microstructural features and hardness of the composites (more enhanced in high wt.% samples), but sintering duration and pressure did not have a big impact on the composite properties. Elsevier Ltd 2017-04 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/13825/1/fkm-2017-dayang-comprehensive%20microstructural%20analysis1.pdf Pakdel, Amir and Witecka, Agnieszka and Rydzek, Gaulthier and Dayangku Noorfazidah, Awang Sh'ri (2017) A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering. Materials & Design, 119. pp. 225-234. ISSN 0264-1275 http://dx.doi.org/10.1016/j.matdes.2017.01.064 DOI: 10.1016/j.matdes.2017.01.064
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
description	There have been many investigations on metal matrix microcomposites produced by conventional casting routes; however, in the past decade, the focus has shifted more toward nanocomposites produced via solid state routes. To have a realistic view of performance prediction and optimum design of such composites, in this work Al matrix composites (AMCs) reinforced with WC microparticles, nanoparticles, and bimodal micro-/nano-particles were prepared by spark plasma sintering. The effects of particle size and concentration, and process variables (i.e. sintering temperature, duration, and pressure) on the evolution of microstructure, density and hardness of the composites were studied comprehensively. Full densification of AMCs with high particle concentration was problematic because of ceramic cluster formations in the microstructure. This effect was more emphasized in AMCs containing nanoparticles. AMCs with microparticles were more easily densified, but their hardness benefits were inferior. On the other hand, the mixture of micro- and nano-particles in Al-WC bimodal composites led to better matrix reinforcement integrity and an overall improvement in the microstructural properties. Finally, increasing the sintering temperature improved the microstructural features and hardness of the composites (more enhanced in high wt.% samples), but sintering duration and pressure did not have a big impact on the composite properties.
format	Article
author	Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri
author_facet	Pakdel, Amir Witecka, Agnieszka Rydzek, Gaulthier Dayangku Noorfazidah, Awang Sh'ri
author_sort	Pakdel, Amir
title	A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
title_short	A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
title_full	A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
title_fullStr	A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
title_full_unstemmed	A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering
title_sort	comprehensive microstructural analysis of al-wc micro- and nano-composites prepared by spark plasma sintering
publisher	Elsevier Ltd
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/ http://umpir.ump.edu.my/id/eprint/13825/1/fkm-2017-dayang-comprehensive%20microstructural%20analysis1.pdf
first_indexed	2023-09-18T22:16:53Z
last_indexed	2023-09-18T22:16:53Z
_version_	1777415396449583104

A Comprehensive Microstructural Analysis of Al-WC micro- and Nano-composites Prepared by Spark Plasma Sintering

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