How does one handle a material that’s one atom thick? One doesn’t handle it. The Graphene cones are a Graphene composite. Mystery solved!
Beware of new material claims - the case of graphene
Given that graphene is quite the in vogue material for audio applications I wonder how many (if any) of the vendors selling this are actually sourcing the real thing?
http://blogs.sciencemag.org/pipeline/archives/2018/10/11/graphene-you-dont-get-what-you-pay-for
http://blogs.sciencemag.org/pipeline/archives/2018/10/11/graphene-you-dont-get-what-you-pay-for
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Jhills By very deffinition, Graphene is a micro thin layer (acording to guidocorona, a mono-atomic, layer) of carbon. That’s what makes it Graphene and what allows it’s extreme qualities. It can’t be gooped up in a solution with something else and still be considered Graphene, or expected to posess the qualities of Graphine (spelling). Just sayn: Beware or fraudulent and perposterous claims.....Jim >>>>There are many ways to employ Graphene in things without having to deal with nanoscale material. As they have done with contact enhancer, tennis racquets, bicycle racing tires, bicycle frames, Graphene cables. You have to be able to use your, you know...🧠 Don’t be such a big baby. By the way, Djokovic has been playing with Head Graphene tennis racquets for several years. Doesn’t seem to hurt his game. He’s ranked no. 2. Maybe it’s placebo effect. 😬 |
@fleschler "Okay, but I stand by whatever Tim Mrock uses in his Omega E-Mats, SR duplexes and SR fuses they all claim have graphene in them." The word which destroys the valid argument is CLAIM. Where is the proof? You cannot put 2D atomic level graphene into a liquid, and claim to have the same properties as a one level atomic sheet grafted onto a silicon base. It is not a trivial exercise to slice a one atom thick layer of Graphene which as a potential product is expensive and is still in the development stage of being applied to electronics. You can claim you have (the true atom thin) graphene, but proof is "proprietary" or "patent pending". Even as a fine talc powder in a solution, it is not true atom level Graphene. |
@geoffkait Yah. And spiders webs are stronger than steel too - and so what. If spiders webs could be produced in labs there’d be “tons” of marketing hype. And they would already be in use to “rigiditize” speaker cones. Yes, we need a new marketing word for any serious scam :). And Geoff - please identify just how many “tons” of graphene are being produced,where and by what company. The universities and research labs would love to know where to pick it up cheap. You could become useful to science! ;) (not) |
ptss @geoffkait Yah. And spiders webs are stronger than steel too - and so what. If spiders webs could be produced in labs there’d be “tons” of marketing hype. And they would already be in use to “rigiditize” speaker cones. Yes, we need a new marketing word for any serious scam :). And Geoff - please identify just how many “tons” of graphene are being produced,where and by what company. The universities and research labs would love to know where to pick it up cheap. You could become useful to science! ;) (not) >>>>>If a frog had wings he wouldn’t bump his rear end so much. Before you show your ignorance and start whining doesn’t it make more sense to spend a few minutes and do some due diligence? When you ass-u-me something you make a fool out of me and Uma Thurman. |
An example of high output Graphene production plant. Graphene production plant in China. Chinese materials company opens new graphene plant in Heilongjiang Chinese coke company Baotailong New Materials has completed construction of a USD$9.6 million graphene production project in the north of the country and has launched trial-stage operations. Baotailong completed all work on the facility located in its hometown of Qitaihe in northern Heilongjiang province at the end of last month, the firm said in a statement. The plant boasts an annual graphene output of 50 tons. Graphene production plant in Canada. NanoXplore logoCanada-based NanoXplore recently announced a positive feasibility study for its graphene production plant. The company said that the independent feasibility study highlighted several improvement as compared to the project’s preliminary economic assessment (PEA). NanoXplore is planning to build a 10,000 metric ton/year graphene production plan, which is currently the largest in the world. NanoXplore plans to offer graphene for $10/kg (USD$8/kg) starting from Jan 2020 under the GrapheneBlack brand. and, Graphene-Info, based in Israel, claims graphene is “set to revolutionize a lot of industries, including sensors, batteries, conductors, displays, electronics, energy generation, medicine and more.” The Home of Graphene from the University of Manchester has a marvelous video explaining graphene and its endless possible applications. There are some 100 pure graphene companies (about 15 are public) largely sustained by joint partnerships and investments, i.e., support from legacy corporations, mining companies, government investments, and venture funds. These start-ups are financially risky with sparse sales and no profits. Three years ago, The Graphene Council warned investors, beware of “graphene play” stock investments that may be scam companies. Nevertheless, graphene research and development is turning into an exciting new industry with potential for changing the manufacture of products and their sustainability. Israeli researchers are also investigating graphene’s value. For example, Ben-Gurion University of the Negev and University of Western Australia researchers have developed a new process for use in energy storage and other material applications that is faster, potentially scalable and surmounts some of the current graphene production limitations. Yaniv Katan, a scientist at Technion, worked on an international team of scientists discovering new ways to turn electricity into light using graphene. |
China is technically underrated. In fact, they hold the current distance record for quantum teleportation. They are also rather adept at making iPhones and iPads. All tennis racquets are made in China, including Head Graphene racquets. Besides, nobody says you have to buy Graphene from China as there is a boatload of countries involved in mass production. Duh! Everybody wants a piece of the action. |
100% geoff. I've known about graphene for at least five or six years. Many start-up companies tout their investment value in future graphene medical uses (too many small companies for me to invest in). There's so much graphene around, just look at the cheap prices on Amazon by the gallon. Despite only a "claim" in using graphene, SR and PP are doing something right in their products because they work GREAT! I'll trust two totally different companies "claiming" graphene use with great results before wanting proof of graphene in their products. |
@ geoffkait That was an interesting and impressive video. Samsung is developing the use of graphene to produce a rapid charge battery. Utilizing graphene as a micro coating on a chip or in a battery is expensive, extensive, processes but is showing great promise in the production of some incredible products. Although labs are developing processes to curl mono-atomic (2D) graphene sheets, into micro 3D spheres and strands, also shows great promise, companies producing tons of stuff they claim to be graphene powder, to be used to add a bit of magic to everything from condoms to hair spray - leaves me more than a little skeptical.....Jim |
"Don't Drink the Graphene!" Wonderful.....reminds me of a sci-fi novel whereas the trap of a one-molecule strand across a doorway would slice one in half. The unlucky mortal who blundered into it wouldn't realize the damage until they bent over, or did a sudden movement... *thump* "Ouch..." *void*.... |
@asvjerry "Don't Drink the Graphene!" "one-molecule strand across a doorway would slice one in half" WOW! You just gave them two wonderful, or not so wonderful, new ideas for the use of Graphene: A Powdered Graphene Supplement to mix with ones breakfast drink and Invisable Killer Thread. I think you're on to something......Jim |
The thing about graphene is that a lot of its amazing properties are only valid when you have continuous perfect sheets of it- something that as far as I know is impossible at the moment. It has a very high electron mobility, but that works out to produce a resistivity of about 10nohm.m in bulk, and that's only if you can make a perfect multilayer structure that maintains the properties of a single sheet. This is only about 40% better than copper which is 16.8nohm.m, and that's easy to make nearly perfect. That conductivity is not maintained if the sheets in the multilayer structure have dislocations. So why is it better than copper? |
Here’s a list of graphene patents and their applications: https://patents.google.com/patent/US9431346 There are all electrical applications and involve circuits. It’s more than just marketing. All the best, Nonoise |
The amount of crap in this thread outweighs the graphene available. In contrast to “tons” being manufactured and “commercial availability” for some years. Readers of this should review the “real news” that MIT (university), with support from the Navy and Dept of Defense, developed a method to manufacture sheets of Real Graphene that may allow mass production. They were able to create a sheet of graphene about 10 ft long. This breakthrough was in April 2018. The nonsense in this thread is pathetic. Disappointing that people resort to lies when most of us just want to learn and share facts. The big question ? Will these posters ever grow up. ??? |
Graphene is being sold in bulk to specialty applications. In bulk, it 's relatively inexpensive. Here are three examples Graphene in solution single layer https://www.amazon.com/Single-Layer-Graphene-Oxide-Aqueous-Dispersion/dp/B00EE0XPNQ/ref=sr_1_23?ie=U... Graphine in power https://www.amazon.com/Angstron-Materials-N008-P-40-Graphene-Powder/dp/B00OYAM1O0/ref=sr_1_6?ie=UTF8... Graphine in a tennis racket https://www.amazon.com/HEAD-Graphene-360-Speed-Racquet/dp/B07F22Z16W/ref=sr_1_24?ie=UTF8&qid=154... I suspect that PPS doesn't pay much for their graphene either (or SR) but there's the other components and design which should be paid for in their final products. Despite the lack of an scientific or engineering explanation of how PPS and SR works. I buy the products because they work. |
