Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties

The density and elastic moduli of green compacts can be determined by ultrasonic method with the help of pre-prepared diagrams. In this way, pressing conditions can be taken under control easily. In this study, fly ash particles were used as fillers in an aluminum alloy matrix material. The weight f...

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Main Authors:	Hrairi, Meftah, Ahmed, Mirghani Ishak, Nimir, Yassin
Format:	Article
Language:	English
Published:	Elsevier 2009
Subjects:	TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/6531/ http://irep.iium.edu.my/6531/ http://irep.iium.edu.my/6531/1/Compaction_of_fly_ash%E2%80%93aluminum_alloy_composites_and_evaluation_of_their_mechanical_and_acoustic_properties.pdf

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recordtype	eprints
spelling	iium-65312011-11-24T03:03:34Z http://irep.iium.edu.my/6531/ Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties Hrairi, Meftah Ahmed, Mirghani Ishak Nimir, Yassin TA401 Materials of engineering and construction The density and elastic moduli of green compacts can be determined by ultrasonic method with the help of pre-prepared diagrams. In this way, pressing conditions can be taken under control easily. In this study, fly ash particles were used as fillers in an aluminum alloy matrix material. The weight fractions of fly ash in the composites were in the range of 5–30%. The resulting composites were compacted at pressures ranging from 63 MPa to 316 MPa. It was observed that the green density increased with increasing compacting pressure and decreased with increasing weight percent of fly ash particles resulting in lightweight composites. The green compact composites were also tested using an ultrasonic nondestructive evaluation method. Results showed that ultrasonic velocities are a strong function of the density and the fly ash fraction in this material and could be potentially used to predict the density and the fly ash fraction as well as the elastic moduli of the metal matrix composite. Elsevier 2009 Article PeerReviewed application/pdf en http://irep.iium.edu.my/6531/1/Compaction_of_fly_ash%E2%80%93aluminum_alloy_composites_and_evaluation_of_their_mechanical_and_acoustic_properties.pdf Hrairi, Meftah and Ahmed, Mirghani Ishak and Nimir, Yassin (2009) Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties. Advanced Powder Technology, 20 (6). pp. 548-553. ISSN 0921-8831 http://www.journals.elsevier.com/advanced-powder-technology/
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA401 Materials of engineering and construction
spellingShingle	TA401 Materials of engineering and construction Hrairi, Meftah Ahmed, Mirghani Ishak Nimir, Yassin Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
description	The density and elastic moduli of green compacts can be determined by ultrasonic method with the help of pre-prepared diagrams. In this way, pressing conditions can be taken under control easily. In this study, fly ash particles were used as fillers in an aluminum alloy matrix material. The weight fractions of fly ash in the composites were in the range of 5–30%. The resulting composites were compacted at pressures ranging from 63 MPa to 316 MPa. It was observed that the green density increased with increasing compacting pressure and decreased with increasing weight percent of fly ash particles resulting in lightweight composites. The green compact composites were also tested using an ultrasonic nondestructive evaluation method. Results showed that ultrasonic velocities are a strong function of the density and the fly ash fraction in this material and could be potentially used to predict the density and the fly ash fraction as well as the elastic moduli of the metal matrix composite.
format	Article
author	Hrairi, Meftah Ahmed, Mirghani Ishak Nimir, Yassin
author_facet	Hrairi, Meftah Ahmed, Mirghani Ishak Nimir, Yassin
author_sort	Hrairi, Meftah
title	Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
title_short	Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
title_full	Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
title_fullStr	Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
title_full_unstemmed	Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
title_sort	compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties
publisher	Elsevier
publishDate	2009
url	http://irep.iium.edu.my/6531/ http://irep.iium.edu.my/6531/ http://irep.iium.edu.my/6531/1/Compaction_of_fly_ash%E2%80%93aluminum_alloy_composites_and_evaluation_of_their_mechanical_and_acoustic_properties.pdf
first_indexed	2023-09-18T20:15:31Z
last_indexed	2023-09-18T20:15:31Z
_version_	1777407761090347008

Compaction of fly ash–aluminum alloy composites and evaluation of their mechanical and acoustic properties

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