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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my.upm.eprints.873052022-02-06T06:39:52Z http://psasir.upm.edu.my/id/eprint/87305/ 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 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 2020-09 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87305/1/Process%E2%88%92microstructure%E2%88%92properties%20relationship.pdf 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, 30 (9). 2339 - 2354. ISSN 1003-6326 https://www.sciencedirect.com/science/article/abs/pii/S1003632620653833 10.1016/S1003-6326(20)65383-3 |
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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. |
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Article |
author |
Toozandehjani, Meysam Ostovan, Farhad Jamaludin, Khairur Rijal Amrin, Astuty Matori, Khamirul Amin Shafiei, Ehsan |
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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 |
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 |
publishDate |
2020 |
url |
http://psasir.upm.edu.my/id/eprint/87305/1/Process%E2%88%92microstructure%E2%88%92properties%20relationship.pdf http://psasir.upm.edu.my/id/eprint/87305/ https://www.sciencedirect.com/science/article/abs/pii/S1003632620653833 |
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