Manufacturing Industry
The creation of tiny carbon spheres finally revealed.(NANOMATERIALS)
Advanced Ceramics Report, December, 2007
The birth secret of buckyballs-hollow spheres of carbon no wider than a strand of DNA-has been recorded by researchers at Sandia National Laboratories and Rice University, USA.An electron microscope video and computer simulations show that "shrink-wrapping" is the key: buckyballs start life as distorted, unstable sheets of graphite, shedding loosely connected threads and chains until only the perfectly spherical buckyballs remain.
Buckyballs were discovered at Rice in 1985, but understanding the intimate details of their formation has vexed scientists. Buckyballs form at high temperatures, and one longstanding theory of their genesis is the "hot giant" hypothesis, which suggests that the carbon atoms first assemble by the thousands in flat graphite sheets. Heat...
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