Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process

Al matrix composites with a high volume fraction of reinforcements were fabricated with a compact of Al-Ti-B4C powder mixtures by quick spontaneous infiltration (QSI) process in an aluminum melt. Given the exothermal nature of the reaction between CuO and Al, a certain amount of CuO addition to the...

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Main Authors: Zhang Jingjing, Lee Jung-Moo, Cho Young-Hee
Format: Article
Language:English
Published: Foundry Journal Agency 2014-05-01
Series:China Foundry
Subjects:
Online Access:http://www.foundryworld.com/uploadfile/2014061658412281.pdf
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spelling doaj-9e144b8ac09b401b9969af647a1e5f182020-11-24T23:42:28ZengFoundry Journal AgencyChina Foundry1672-64211672-64212014-05-01113191196Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration processZhang Jingjing0Lee Jung-Moo1Cho Young-Hee2Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250100, ChinaLight Metal Division, Korea Institute of Materials Science, Changwon, 642-831, Republic of KoreaLight Metal Division, Korea Institute of Materials Science, Changwon, 642-831, Republic of KoreaAl matrix composites with a high volume fraction of reinforcements were fabricated with a compact of Al-Ti-B4C powder mixtures by quick spontaneous infiltration (QSI) process in an aluminum melt. Given the exothermal nature of the reaction between CuO and Al, a certain amount of CuO addition to the Al-Ti-B4C system dramatically increases the adiabatic temperature and thereby enables the complete combustion reaction in an aluminum melt (about 1,173 K). After the QSI process, the compact fabricated with CuO retains its original shape and the obtained composite exhibits sound microstructure containing reaction products of TiB2, Al3BC and B4C. The formation of such reinforcements when adding CuO contributes to enhancing the properties of the composites that show far superior hardness and elastic modulus of 3.03 GPa and 158.9 GPa, respectively, with lower coefficient of thermal expansion (9.44 ppm-1) compared to those with no CuO addition.http://www.foundryworld.com/uploadfile/2014061658412281.pdfAl composite; CuO addition; Al-Ti-B4C; microstructure; mechanical properties
collection DOAJ
language English
format Article
sources DOAJ
author Zhang Jingjing
Lee Jung-Moo
Cho Young-Hee
spellingShingle Zhang Jingjing
Lee Jung-Moo
Cho Young-Hee
Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
China Foundry
Al composite; CuO addition; Al-Ti-B4C; microstructure; mechanical properties
author_facet Zhang Jingjing
Lee Jung-Moo
Cho Young-Hee
author_sort Zhang Jingjing
title Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
title_short Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
title_full Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
title_fullStr Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
title_full_unstemmed Effect of CuO addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
title_sort effect of cuo addition on microstructure and properties of aluminum composites produced by quick spontaneous infiltration process
publisher Foundry Journal Agency
series China Foundry
issn 1672-6421
1672-6421
publishDate 2014-05-01
description Al matrix composites with a high volume fraction of reinforcements were fabricated with a compact of Al-Ti-B4C powder mixtures by quick spontaneous infiltration (QSI) process in an aluminum melt. Given the exothermal nature of the reaction between CuO and Al, a certain amount of CuO addition to the Al-Ti-B4C system dramatically increases the adiabatic temperature and thereby enables the complete combustion reaction in an aluminum melt (about 1,173 K). After the QSI process, the compact fabricated with CuO retains its original shape and the obtained composite exhibits sound microstructure containing reaction products of TiB2, Al3BC and B4C. The formation of such reinforcements when adding CuO contributes to enhancing the properties of the composites that show far superior hardness and elastic modulus of 3.03 GPa and 158.9 GPa, respectively, with lower coefficient of thermal expansion (9.44 ppm-1) compared to those with no CuO addition.
topic Al composite; CuO addition; Al-Ti-B4C; microstructure; mechanical properties
url http://www.foundryworld.com/uploadfile/2014061658412281.pdf
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AT leejungmoo effectofcuoadditiononmicrostructureandpropertiesofaluminumcompositesproducedbyquickspontaneousinfiltrationprocess
AT choyounghee effectofcuoadditiononmicrostructureandpropertiesofaluminumcompositesproducedbyquickspontaneousinfiltrationprocess
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