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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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 |
work_keys_str_mv |
AT zhangjingjing effectofcuoadditiononmicrostructureandpropertiesofaluminumcompositesproducedbyquickspontaneousinfiltrationprocess AT leejungmoo effectofcuoadditiononmicrostructureandpropertiesofaluminumcompositesproducedbyquickspontaneousinfiltrationprocess AT choyounghee effectofcuoadditiononmicrostructureandpropertiesofaluminumcompositesproducedbyquickspontaneousinfiltrationprocess |
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