Composite Reinforcement using Boron Nitride Nanotubes
نویسندگان
چکیده
Boron nitride nanotubes have been proposed as a suitable reinforcement for metal matrix composites. In order to be effective, the interaction between the metal and the nanotube needs to be strong while retaining the nanotube structure. Computational quantum chemistry was used to study interactions of aluminium and titanium metal clusters with boron nitride nanotubes. The effect of varying the radius of the nanotubes and the size of the aluminium and titanium clusters was considered. In addition, the strength and nature of the binding to both pristine and defective boron nitride nanotubes was compared. It was found that even though strong binding occurred, particularly with titanium, the structure of the nanotubes was not greatly disrupted. This behaviour is advantageous for their use as reinforcement materials. Defects created by removing a boron or nitrogen atom from the nanotube enhance binding had different qualitatively effects on the change in bond strength with nanotube radius.
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