Interface analysis of ultra-high strength carbon nanotube/nickel composites processed by molecular level mixing
- Interface analysis of ultra-high strength carbon nanotube/nickel composites processed by molecular level mixing
- 황준연; 임병규; J. Tiley; R. Banerjee; 홍순형
- Interface; Carbon Nanotube; Metal Matrix Composites; TEM; Molecular level mixing
- Issue Date
- VOL 57, 282-287
- Carbon nanotube (CNT) reinforced nickel matrix (CNT/Ni) composites exhibiting a yield
strength (YS) of 710 MPa, about 3.7 times higher than monolithic nickel, have been processed
by a molecular-level mixing process followed by spark plasma sintering (SPS). The
enormous strength increase in these composites can be attributed to a homogeneous distribution of nanotubes in the nickel matrix coupled with the formation of well-bonded,
high strength, contaminant-free nanotube/nickel interfaces, as revealed by high-resolution
transmission electron microscopy. Such interfaces can effectively transfer load between
nanotubes and nickel matrix in the CNT/Ni composites.
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