Nanotubes of carbon and other materials
are arguably the most fascinating
materials playing an important
role in nanotechnology today.
Their unique mechanical, electronic,
and other properties are expected to result
in revolutionary new materials and
devices. However, these nanomaterials,
produced mostly by synthetic bottomup
methods, are discontinuous objects,
and this leads to difficulties with their
alignment, assembly, and processing
into applications. Partly because of
this, and despite considerable effort, a
viable carbon nanotube–reinforced supernanocomposite
is yet to be demonstrated.
Advanced continuous fibers
produced a revolution in the field of
structural materials and composites in
the last few decades as a result of their
high strength, stiffness, and continuity,
which, in turn, meant processing and
alignment that were economically feasible.
Fiber mechanical properties are
known to substantially improve with a
decrease in the fiber diameter. Hence,
there is a considerable interest in the
development of advanced continuous
fibers with nanoscale diameters. However,
conventional mechanical fiber
spinning techniques cannot produce fibers
with diameters smaller than about
2 μm robustly. Most commercial fibers
are several times that diameter, owing
to the trade-offs between the
Nanotubes of carbon and other materialsare arguably the most fascinatingmaterials playing an importantrole in nanotechnology today.Their unique mechanical, electronic,and other properties are expected to resultin revolutionary new materials anddevices. However, these nanomaterials,produced mostly by synthetic bottomupmethods, are discontinuous objects,and this leads to difficulties with theiralignment, assembly, and processinginto applications. Partly because ofthis, and despite considerable effort, aviable carbon nanotube–reinforced supernanocompositeis yet to be demonstrated.Advanced continuous fibersproduced a revolution in the field ofstructural materials and composites inthe last few decades as a result of theirhigh strength, stiffness, and continuity,which, in turn, meant processing andalignment that were economically feasible.Fiber mechanical properties areknown to substantially improve with adecrease in the fiber diameter. Hence,there is a considerable interest in thedevelopment of advanced continuousfibers with nanoscale diameters. However,conventional mechanical fiberspinning techniques cannot produce fiberswith diameters smaller than about2 μm robustly. Most commercial fibersare several times that diameter, owingto the trade-offs between the
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