Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 728, Issue -, Pages 640-644Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.09.006
Keywords
Composite; Mechanical alloying; Nitrogen
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Funding
- MINECO/FEDER [DPI2015-69550-C2-1-P]
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This research focuses on the production of Al matrix composites (AMCs) reinforced with various percentages of AlN. For this purpose, Al powder was milled at room temperature for a total time of 5 h. The percentage of the reinforcement phase was varied by milling under different periods of vacuum and ammonia (NH3) gas flow. X-ray diffraction analysis showed the benefits of the combined milling atmosphere in forming higher amounts of AlN after powder heat-treatment. Results showed that the period milled in vacuum determined the capacity of the powder to adsorb N during the NH3 gas period. Even under shorter vacuum milling periods, the amount of AlN formed after sintering can be increased. (C) 2017 Elsevier B.V. All rights reserved.
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