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Bullet-proof: The FUTURE...

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  • Bullet-proof: The FUTURE...

    Yes, that was a horribly tacky title.

    Anyway... I was looking on CNET one day and came across some cool stuff on carbon nanotubes; some interesting finds, as people are talking about space elevators, TVs, light armor plating, and best of all, bullet-proof vests.

    MIT is in the works experimenting with carbon nanotubes as threads to replace Kevlar.
    An excerpt from the Wikipedia:
    "One application for nanotubes that is currently being researched is high tensile strength fibers. Two methods are currently being tested for the manufacture of such fibers. A French team has developed a liquid spun system that involves pulling a fiber of nanotubes from a bath which yields a product that is approximately 60% nanotubes. The other method, which is simpler but produces weaker fibers uses traditional melt-drawn polymer fiber techniques with nanotubes mixed in the polymer. After drawing, the fibers can have the polymer burned out of them to make them purely nanotube or they can be left as they are.
    Ray Baughman's group from the NanoTech Institute at University of Texas at Dallas produced the current toughest material known in mid-2003 by spinning fibers of single wall carbon nanotubes with polyvinyl alcohol. Beating the previous contender, spider silk, by a factor of four, the fibers require 600 J/g to break. In comparison, the bullet-resistant fiber Kevlar is 27-33J/g. In mid-2005 Baughman and co-workers from Australia's Commonwealth Scientific and Industrial Research Organization developed a method for producing transparent carbon nanotube sheets 1/1000th the thickness of a human hair capable of supporting 50,000 times their own mass. In August 2005, Ray Baughman's team managed to develop a fast method to manufacture up to seven meters per minute of nanotube tape. Once washed with ethanol, the ribbon is only 50 nanometers thick; a square kilometer of the material would only weigh 30 kilograms.
    In 2004 Alan Windle's group of scientists at the Cambridge-MIT Institute developed a way to make carbon nanotube fiber continuously at the speed of several centimetres per second just as nanotubes are produced. One thread of carbon nanotubes was more than 100 metres long. The resulting fibers are electrically conductive and as strong as ordinary textile threads."

    Ah... let the ideas run...
    In ten years we may see a replacement for steel, and tanks might be able to withstand those RPG-29s or other nasty things that come their way, and weight less than 20 tons.

  • #2
    Originally posted by sniperdude411
    Yes, that was a horribly tacky title.

    Anyway... I was looking on CNET one day and came across some cool stuff on carbon nanotubes; some interesting finds, as people are talking about space elevators, TVs, light armor plating, and best of all, bullet-proof vests.

    MIT is in the works experimenting with carbon nanotubes as threads to replace Kevlar.
    An excerpt from the Wikipedia:
    "One application for nanotubes that is currently being researched is high tensile strength fibers. Two methods are currently being tested for the manufacture of such fibers. A French team has developed a liquid spun system that involves pulling a fiber of nanotubes from a bath which yields a product that is approximately 60% nanotubes. The other method, which is simpler but produces weaker fibers uses traditional melt-drawn polymer fiber techniques with nanotubes mixed in the polymer. After drawing, the fibers can have the polymer burned out of them to make them purely nanotube or they can be left as they are.
    Ray Baughman's group from the NanoTech Institute at University of Texas at Dallas produced the current toughest material known in mid-2003 by spinning fibers of single wall carbon nanotubes with polyvinyl alcohol. Beating the previous contender, spider silk, by a factor of four, the fibers require 600 J/g to break. In comparison, the bullet-resistant fiber Kevlar is 27-33J/g. In mid-2005 Baughman and co-workers from Australia's Commonwealth Scientific and Industrial Research Organization developed a method for producing transparent carbon nanotube sheets 1/1000th the thickness of a human hair capable of supporting 50,000 times their own mass. In August 2005, Ray Baughman's team managed to develop a fast method to manufacture up to seven meters per minute of nanotube tape. Once washed with ethanol, the ribbon is only 50 nanometers thick; a square kilometer of the material would only weigh 30 kilograms.
    In 2004 Alan Windle's group of scientists at the Cambridge-MIT Institute developed a way to make carbon nanotube fiber continuously at the speed of several centimetres per second just as nanotubes are produced. One thread of carbon nanotubes was more than 100 metres long. The resulting fibers are electrically conductive and as strong as ordinary textile threads."

    Ah... let the ideas run...
    In ten years we may see a replacement for steel, and tanks might be able to withstand those RPG-29s or other nasty things that come their way, and weight less than 20 tons.
    a nice idea i dont know how quickly it will be thrown from testing facilities into battle but if it worls we may be bringing how more soildiers

    Comment


    • #3
      But is it practical for mass production?
      "The right man in the wrong place can make all the difference in the world. So wake up, Mr. Freeman. Wake up and smell the ashes." G-Man

      Comment


      • #4
        Originally posted by leibstandarte10
        But is it practical for mass production?
        not yet in a few years maybe

        Comment


        • #5
          I am sure somewhere. there is a person designing the perfect bullet to penetrate the armor.
          Removing a single turd from the cesspool doesn't make any difference.

          Comment


          • #6
            You have to consider the shear strength of the material though. It would work great for body armour, but it probably wouldn't work too well on a tank. Other factors like elasticity and temperature resistance would be important too. I could definitely see something like this producing new body armour though.

            Comment


            • #7
              have any of you ever seen that material they sell in science catalauges? its said to "relive 45% of force". i have always wondered why they dont cover trauma plates with it wouldnt that help protect againts the bone-breaking force of large caliber bullets (like level III body armor). getting shot with a rifle shot even with good kevlar on can cause internal bleeding with a crappy trauma plate.

              i was looking at a peice of kevlar vest that was shot with varying caliber bullets in a museum in manhatten (.22, 9mm, .38, .347, .44 and i think thats it, it wasnt recently) you would be surprised what that trauma plate did, some of the material on the back of the vest was blown off in places without a trauma plate

              Comment


              • #8
                Carbon nanotubes have almost no elasticity, stretch less than .01% their length, and are extremely resistant to heat. If you have ever wondered, multi-walled CNTs that are about the thickness of a pencil can hold more than one hundred standard-size(the ones you'll find in a smaller building; the 12-in. ones) I-beams.

                Currently, single-walled CNTs (which would be used in things like car chassis, cathode ray tubes, woven cloth, and other extremely hard sheets) cost about $25 per gram to pruduce.
                If you were to make a one-kilometer square sheet on CNTs that are 50 nanometers thick, it would weight 30 kilograms.

                Comment

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