Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7891878 | Composites Part A: Applied Science and Manufacturing | 2015 | 30 Pages |
Abstract
A metal matrix composite has been obtained by a novel synthesis route, reacting Al3Ti and graphite at 1000 °C for about 1 min after ball-milling and compaction. The resulting composite is made of an aluminium matrix reinforced by nanometer sized TiC particles (average diameter 70 nm). The average TiC/Al ratio is 34.6 wt.% (22.3 vol.%). The microstructure consists of an intimate mixture of two domains, an unreinforced domain made of the Al solid solution with a low TiC reinforcement content, and a reinforced domain. This composite exhibits uncommon mechanical properties with regard to previous micrometer sized Al-TiC composites and to its high reinforcement volume fraction, with a Young's modulus of â¼110 GPa, an ultimate tensile strength of about 500 MPa and a maximum elongation of 6%.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Nassim Samer, Jérôme Andrieux, Bruno Gardiola, Nikhil Karnatak, Olivier Martin, Hiroki Kurita, Laurent Chaffron, Sophie Gourdet, Sabine Lay, Olivier Dezellus,