Carbon nanotube reinforced aluminum nanocomposite via plasma and high velocity oxy-fuel spray forming.
Free standing structures of hypereutectic aluminum-23 wt% silicon nanocomposite with multiwalled carbon nanotubes (MWCNT) reinforcement have been successfully fabricated by two different thermal spraying technique viz Plasma Spray Forming (PSF) and High Velocity Oxy-Fuel (HVOF) Spray Forming. Comparative microstructural and mechanical property evaluation of the two thermally spray formed nanocomposites has been carried out. Presence of nanosized grains in the Al-Si alloy matrix and physically intact and undamaged carbon nanotubes were observed in both the nanocomposites. Excellent interfacial bonding between Al alloy matrix and MWCNT was observed. The elastic modulus and hardness of HVOF sprayed nanocomposite is found to be higher than PSF sprayed composites.
Laha
T
T
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida, USA.
Liu
Y
Y
Agarwal
A
A
D000497:Alloys / Q000737:chemistry; D000535:Aluminum / Q000737:chemistry*; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D004548:Elasticity; D006244:Hardness; D006245:Hardness Tests; D006358:Hot Temperature; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012825:Silicon / Q000737:chemistry; D013059:Spectrum Analysis, Raman
D000497:Alloys; D020099:Coated Materials, Biocompatible; D037742:Nanotubes, Carbon; D000535:Aluminum; D012825:Silicon