Staff View: Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process

Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process

Al−2CNTs−xAl2O3 nanocomposites were manufactured by a hybrid powder metallurgy and microwave sintering process. The correlation between process-induced microstructural features and the material properties including physical and mechanical properties as well as ultrasonic parameters was measured. It...

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Main Authors:	Toozandehjani, Meysam, Ostovan, Farhad, Jamaludin, Khairur Rijal, Amrin, Astuty, Matori, Khamirul Amin, Shafiei, Ehsan
Format:	Article
Published:	Elsevier Ltd. 2020
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/93598/ http://dx.doi.org/10.1016/S1003-6326(20)65383-3
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spelling	my.utm.935982021-12-31T08:45:49Z http://eprints.utm.my/id/eprint/93598/ Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process Toozandehjani, Meysam Ostovan, Farhad Jamaludin, Khairur Rijal Amrin, Astuty Matori, Khamirul Amin Shafiei, Ehsan TA Engineering (General). Civil engineering (General) Al−2CNTs−xAl2O3 nanocomposites were manufactured by a hybrid powder metallurgy and microwave sintering process. The correlation between process-induced microstructural features and the material properties including physical and mechanical properties as well as ultrasonic parameters was measured. It was found that physical properties including densification and physical dimensional changes were closely associated with the morphology and particle size of nanocomposite powders. The maximum density was obtained by extensive particle refinement at milling time longer than 8 h and Al2O3 content of 10 wt.%. Mechanical properties were controlled by Al2O3 content, dispersion of nano reinforcements and grain size. The optimum hardness and strength properties were achieved through incorporation of 10 wt.% Al2O3 and homogenous dispersion of CNTs and Al2O3 nanoparticles (NPs) at 12 h of milling which resulted in the formation of high density of dislocations and extensive grain size refinement. Also both longitudinal and shear velocities and attenuation increase linearly by increasing Al2O3 content and milling time. The variation of ultrasonic velocity and attenuation was attributed to the degree of dispersion of CNTs and Al2O3 and also less inter-particle spacing in the matrix. The larger Al2O3 content and more homogenous dispersion of CNTs and Al2O3 NPs at longer milling time exerted higher velocity and attenuation of ultrasonic wave. Elsevier Ltd. 2020-09 Article PeerReviewed Toozandehjani, Meysam and Ostovan, Farhad and Jamaludin, Khairur Rijal and Amrin, Astuty and Matori, Khamirul Amin and Shafiei, Ehsan (2020) Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process. Transactions of Nonferrous Metals Society of China (English Edition), 30 (9). pp. 2339-2354. ISSN 1003-6326 http://dx.doi.org/10.1016/S1003-6326(20)65383-3 DOI:10.1016/S1003-6326(20)65383-3
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/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Toozandehjani, Meysam Ostovan, Farhad Jamaludin, Khairur Rijal Amrin, Astuty Matori, Khamirul Amin Shafiei, Ehsan Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
description	Al−2CNTs−xAl2O3 nanocomposites were manufactured by a hybrid powder metallurgy and microwave sintering process. The correlation between process-induced microstructural features and the material properties including physical and mechanical properties as well as ultrasonic parameters was measured. It was found that physical properties including densification and physical dimensional changes were closely associated with the morphology and particle size of nanocomposite powders. The maximum density was obtained by extensive particle refinement at milling time longer than 8 h and Al2O3 content of 10 wt.%. Mechanical properties were controlled by Al2O3 content, dispersion of nano reinforcements and grain size. The optimum hardness and strength properties were achieved through incorporation of 10 wt.% Al2O3 and homogenous dispersion of CNTs and Al2O3 nanoparticles (NPs) at 12 h of milling which resulted in the formation of high density of dislocations and extensive grain size refinement. Also both longitudinal and shear velocities and attenuation increase linearly by increasing Al2O3 content and milling time. The variation of ultrasonic velocity and attenuation was attributed to the degree of dispersion of CNTs and Al2O3 and also less inter-particle spacing in the matrix. The larger Al2O3 content and more homogenous dispersion of CNTs and Al2O3 NPs at longer milling time exerted higher velocity and attenuation of ultrasonic wave.
format	Article
author	Toozandehjani, Meysam Ostovan, Farhad Jamaludin, Khairur Rijal Amrin, Astuty Matori, Khamirul Amin Shafiei, Ehsan
author_facet	Toozandehjani, Meysam Ostovan, Farhad Jamaludin, Khairur Rijal Amrin, Astuty Matori, Khamirul Amin Shafiei, Ehsan
author_sort	Toozandehjani, Meysam
title	Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
title_short	Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
title_full	Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
title_fullStr	Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
title_full_unstemmed	Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
title_sort	process microstructure properties relationship in al−cnts−al2o3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process
publisher	Elsevier Ltd.
publishDate	2020
url	http://eprints.utm.my/id/eprint/93598/ http://dx.doi.org/10.1016/S1003-6326(20)65383-3
_version_	1720980097623654400
score	13.211869

Process microstructure properties relationship in Al−CNTs−Al2O3 nanocomposites manufactured by hybrid powder metallurgy and microwave sintering process

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