Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 105, Issue -, Pages 87-96Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2017.11.013
Keywords
Carbon nanotubes (CNTs); Silicon carbide particle (SiCp); Aluminum matrix nanocmposites (AMNCs); Mechanical properties; Synergistic-strengthening
Funding
- National Natural Science Foundation of China [51571160]
- Pivot Innovation Team of Shaanxi Electric Materials and Infiltration Technique [2012KCT-25, 15JS071]
- open fund of Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Taizhou Zhejiang, China [DZ201604]
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In this study, reinforcements of carbon nanotubes (CNTs) and silicon carbide particle (SiCp) in CNTs-SiCp reinforced aluminum matrix nanocomposites (AMNCs) are studied. The tensile strength of 0.5CNTs0.5SiC(p)/A1 increase by 94% compared with pure Al reaching 247 MPa, it also has a lifting of 14% and 56% compared with 1.00NTs/Al and 1.0SiC(p)/Al. CNT-SiCp reinforcements have the synergistic enhancement effect of 1 + 1 > 2 in tensile strength. It is found that SiCp as a dispersed particle around CNTs can inhibit and delay the pulling out and peeling of CNTs to further enhance the strengthening effect of CNTs by pinning effect. Between CNTs and Al matrix, there is a nano-scale reaction transition layer which improves the mechanical properties of AMNCs by strengthening the interfacial bonding. The existences of SiCp inhibit the excessive reaction of the interface, when the tensile strength of AMNCs increases compared with pure Al, the elongation and conductivity have similar maintaining. (C) 2017 Elsevier Ltd. All rights reserved.
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