Accumulative roll bonding was adapted to fabricate a carbon nanotube reinforced aluminum matrix composite. The microstructure was investigated by transmission electron microscopy, and it was confirmed that the nanotubes were embedded into the metal matrix while maintaining their multiwalled structure. Measurements revealed that the as-received carbon nanotubes had a bimodal diameter size distribution, while only nanotubes with diameters >30 nm and more than 30 walls were retained during four consecutive rolling operations at 50% reduction.
The elastic deflection and vibration damping properties of the laminated composite were investigated by cantilever bending test and by impulse excitation method in samples with different concentrations of carbon nanotubes. Measurements by both methods revealed that a 0.23wt% concentration of nanotubes increased the elastic modulus according to the rule of mixtures and the damping behavior of the composites increased by the addition of nanotubes up to 0.1wt%. / Materials Engineering
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:AEU.10048/1894 |
| Date | 06 1900 |
| Creators | Salimi, Sahar |
| Contributors | Gerlich, Adrian (Chemical and Materials Engineering), Gerlich, Adrian (Chemical and Materials Engineering), Mendez, Patricio (Chemical and Materials Engineering), Lubell, Adam (Civil and Environmental Engineering) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 9699490 bytes, application/pdf |
| Relation | JOURNAL OF MATERIALS SCIENCE Volume 46, Number 2, 409-415, DOI: 10.1007/s10853-010-4855-z (2010)http://www.springerlink.com/content/h475601158017402/ |
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