| Autor: |
Cui Hu, Hong Peng Sun, Xiao Lan Cai, Ya Guang Chen, Gang Le |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Advanced Materials Research. :186-190 |
| ISSN: |
1662-8985 |
| Popis: |
High-Energy Ball Milling was used to disperse carbon nanotubes (CNTs) in Al-5wt%Mg matrix and hot-pressing were used to consolidate the composite powders with different CNTs contents. The results showed that a certain weight of CNTs can be homogeneously dispersed in the matrix through the high-energy ball milling, the most of CNTs are embedded in the Al-5wt%Mg matrix and have a close bonding with the Al-5wt%Mg matrix. In addition, CNTs can play the role of grinding aids to prevented agglomeration of particles. Tensile strength and hardness of the CNTs/Al-5wt%Mg composites increase by 47.9% and 37.25% respectively when the CNTs was 2wt% in the Al-5wt%Mg composites. The fracture surfaces of the composite with 2wt% CNTs involved in the pulling out and breakage of CNTs. In this case, both Orowan looping and load transfer were proved to be the strengthening mechanisms of the CNTs/ Al-5wt%Mg composites. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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