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Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow
Joint Authors
Cintas, J.
Caballero, E. S.
Montes, J. M.
Cuevas, F. G.
Arevalo, C.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-27
Country of Publication
Egypt
No. of Pages
8
Abstract EN
The production of high hardness and thermally stable nanocrystalline aluminium composites is described.
Al powder was milled at room temperature in an ammonia flow for a period of less than 5 h.
NH3 dissociation during milling provokes the absorption, at a high rate, of nitrogen into aluminium, hardening it by forming a solid solution.
Controlled amounts of AlN and Al5O6N are formed during the subsequent sintering of milled powders for consolidation.
The pinning action of these abundant dispersoids highly restrains aluminium grain growth during heating.
The mean size of the Al grains remains below 45 nm and even after the milled powder is sintered at 650°C for 1 h.
American Psychological Association (APA)
Cintas, J.& Caballero, E. S.& Montes, J. M.& Cuevas, F. G.& Arevalo, C.. 2014. Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1015755
Modern Language Association (MLA)
Cintas, J.…[et al.]. Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1015755
American Medical Association (AMA)
Cintas, J.& Caballero, E. S.& Montes, J. M.& Cuevas, F. G.& Arevalo, C.. Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1015755
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015755