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. 2016 Jun 2;9(6):442. doi: 10.3390/ma9060442

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© 2016 by the authors;

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Average hardness measurement values of the Al-12% Si base metal and the formed composites after the addition of copper powder with different weight percentages.