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Carbon tubes suffused with buckyfoam

  1. Apr 28, 2003 #1
    Imagine a tube or sandwiched wall of carbon, with width W. Now fill its interior with connected buckyballs of random diameters d up to d~(Wrbuckminsterfullerene)1/2. This artificial organic structure mimics that of natural wood, bone or pumice. It retains maximum strength and rigidity with relative ease of construction (utilizing random buckyballs).

    This "buckyfoam" could eventually be applied where most rigid foams and many solid forms are now used, with increase in strength/mass by over tenfold. For instance, the I-beam or other superstructures might be replaced by carbon tubes suffused with buckyfoam.
    Last edited by a moderator: Feb 4, 2013
  2. jcsd
  3. Apr 28, 2003 #2
    I can't see how this mimics either wood, bone, or pumice, since all three have quite different structures. Do you mean lots of litle cavities? And "relative ease of construction" isn't saying much.
  4. May 1, 2003 #3
    Random orders of buckyballs may compose a foam-like structure (buckyfoam), one that may be relatively easy to create (as buckeyballs are now "mass-produced" with arbitrary molecular weight) and has properties far superior to ordinary rigid foam.
    Last edited: May 1, 2003
  5. May 1, 2003 #4
    Is this what they are thinking of making the Tokyo pyramid city out of, if it ever gets built? I remember it saying something about nanotubes, but there was more to it than that. So maybe it was this buckyfoam? How strong would it be?
  6. May 1, 2003 #5
    Buckyfoam is my own "invention."
  7. May 2, 2003 #6
    Re: Buckyfoam

    I think of foam as being by definition a surface effect phenomena rather than completely enclosed. I can't even begin to imagine any advantages to such a creation. As usual Booda, you ask the deep questions. Is it a surface or an enclosure? How do you distinguish between the two? If it does have any advantages I suspect they are more along the lines of electrical or some subtle mechanical effect no one has detected yet. :0)
  8. May 2, 2003 #7

    "Rigid" foam's acoustic properties arise from its isotropic energy dissipation. (Your "stereo" speakers may well have foam rubber enclosed within.) In a structure like a tube (I offered a carbon, i. e. graphite, one as an example), stresses are redirected by randomly massed and situated bucky balls. Since carbon 60 is difficult to isolate, I thought to utilize a spectrum of buckminsterfullerenes (typically carbon 60) for mass production of buckyfoam.
  9. May 3, 2003 #8
    Its expensive stuff no matter how you make it, and the sizes are so small it seems pointless. Anything small enough to utilize their shock absorbing ability would not need it. Something bigger like a speaker, wouldn't notice the difference. The waves moving through the speaker would be magnetudes larger than the foam and the carbon nanotubes themselves would be magnetudes stronger than you would need for a speaker. I don't know what the smallest size accustic wave is, but it seems it must be larger than a bucky ball.
  10. May 3, 2003 #9


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    Science Advisor

    Greetings !
    Well, I find it a bit difficult to see how
    this will work, but hell - what do I know ?
    Anyway, what do you mean - did you apply for
    a patent or what ?
    Also, I think there was this proccess invented
    in the begining of the 90s, after these molecule
    types were enitialy discovered, that greatly
    reduced their costs of production, but I believe
    it's still not that simple for mass scale.

    btw, C60 molecules could have an exciting future
    as fuel for future generations of electric
    ion propulsion thrusters (used in space :wink:).

    Live long and prosper.
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