KillerCarlson 0 Report post Posted August 22, 2005 Thought this was interesting (well I should, I work in this field). Very long, and VERY nerdy (you can skip to the quote below if you like), but it talks about Carbon-Nanotube technology - which is certainly familiar to all us puckheads courtesy of Easton! Apparantly there is a little more to the technology than just blades...try Space Elevators!http://www.spectrum.ieee.org/WEBONLY/publi...5/0805spac.htmlAbout halfway down...to quote:"Then, in 1991, Japanese researcher Sumio Iijima discovered carbon nanotubes. These are long, narrow, cylindrical molecules; the cylinder walls are made of carbon atoms, and the tube is about 1 nanometer in diameter. In theory, at least, carbon-nanotube-based materials have the potential to be 100 times as strong as steel, at one-sixth the density. This strength is three times as great as what is needed for the space elevator. The most recent experiments have produced 4-centimeter-long pieces of carbon-nanotube materials that have 70 times the strength of steel. "Interesting that this technology is finding it's way to HOCKEY STICKS of all places! Kind of helps me belive that it's not all just advertising...p.s. Mods, if this is not "Equipment", please feel free to move this topic! Share this post Link to post Share on other sites
tokes 0 Report post Posted August 23, 2005 I find it hard to believe Easton uses a lot of carbon nano tubes in their sticks, considering they run anywhere from 500-1000 USD per gram, and to get enough material in there to claim the sticks are "25 times stronger" than normal carbon fibre, it just seems wierd. I noticed Easton claims "Carbon Nanotube Technology", which isn't flat out saying they use Carbon Nanotubes, so take that into account. Share this post Link to post Share on other sites
forsberg91 0 Report post Posted August 23, 2005 Yeah i doubt that they use to many or else the sticks would be outrageously expensive. Share this post Link to post Share on other sites
ktang 34 Report post Posted August 23, 2005 Originally, they were thinking about using a Boron-based composite to make these elevators.From the Easton website, I think that Easton is saying that they still use normal carbon graphite fibres, but they add small pieces of carbon nanontubes to the resin surrounding the carbon fibres. That's a big difference from using long strands of carbon nanotubes instead of carbon graphite fibres.Imagine if they replaced carbon graphite fibres with long strands of carbon nanotubes? The tensile strength would be so high that, sandwiched together to make a stick, the stick wouldn't flex at all until it unravelled. Share this post Link to post Share on other sites
KillerCarlson 0 Report post Posted August 23, 2005 Totally agree...Easton is really just using Carbon Nanotube technology to "fill the gaps" that exist between caron fiber strands. By reducing the empty space, they are effectively increasing the strength of (in this case the blade) as a whole.I really posted this to start with because I'd seen some sceptics wondering if there really was such a thing as Carbon Nanotube technology, or if it was just Easton marketing. Turns out that it is real, and they are in fact using it (albeit to a degree). Sometimes we wonder where all that R&D money is spent...just an example. Share this post Link to post Share on other sites
KillerCarlson 0 Report post Posted August 23, 2005 Also, can someone clarify...is CNT used only in the BLADE?Everything I have seen seems to "suggest" that, but I'm not sure. That would explain any flex issues (shaft-wise) in any case... Share this post Link to post Share on other sites
forsberg91 0 Report post Posted August 23, 2005 Yeah its in the blade. Share this post Link to post Share on other sites
blues_91 0 Report post Posted August 23, 2005 Obviously it's not as strong as what's used in the elevator because in a 1 week camp I've seen 2 blades break. Share this post Link to post Share on other sites
ktang 34 Report post Posted August 23, 2005 If I understood the Easton site correctly, the Carbon Nanotubes only help to fill in the volume around the carbon graphite fibres. The carbon graphite fibres are still the main material and structure, and they are the same strength as before.So, in the stick blade, the carbon graphite fibres form a mat, and the resin + Carbon Nanotubes fill the small gaps around the fibres and keep them together.In the space elevator, the Carbon Nanotubes would be the main material and structure. Share this post Link to post Share on other sites
jjtt99 0 Report post Posted August 23, 2005 Pretty cool, but not nearly as nerdy as the conversation that took place a while about about a product that removes (or covers) odor from equipment! Share this post Link to post Share on other sites
ktang 34 Report post Posted August 23, 2005 Both are hockey-nerdy: biologists' and materials engineers' threads. :D Share this post Link to post Share on other sites
