1) Has anyone seen this?
2) Does anyone know where I can get my hands on some graphene material? (I guess that I should check the web before asking that
)
3) I'm wondering what happens if I cut some of this material up and stuff it into an existing compression driver...... hmmmmmm......
World?s first graphene speaker already superior to Sennheiser MX400
Here is a link to the PDF = http://arxiv.org/ftp/arxiv/papers/1303/1303.2391.pdf
2) Does anyone know where I can get my hands on some graphene material? (I guess that I should check the web before asking that
)3) I'm wondering what happens if I cut some of this material up and stuff it into an existing compression driver...... hmmmmmm......
World?s first graphene speaker already superior to Sennheiser MX400
Here is a link to the PDF = http://arxiv.org/ftp/arxiv/papers/1303/1303.2391.pdf
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I have seen this! There is great potential for Graphene; semi conductors, touchscreens, super capacitors, batteries, etc...... The list endless!
2 dimensional, stronger then diamonds and a 100 times more conductive then copper.
As far as I know, Graphene is still in its infancy and not mass produced.
I see audio speakers making a great leap in sound quality when Graphene is easily manufactured.
If you find any updates, post them here.
2 dimensional, stronger then diamonds and a 100 times more conductive then copper.
As far as I know, Graphene is still in its infancy and not mass produced.
I see audio speakers making a great leap in sound quality when Graphene is easily manufactured.
If you find any updates, post them here.
Yes, Graphene is a single layer (a molecule thick) of graphite. A simple Google search will explain what Graphene is. In my post I didn't reference Graphene to be a coating on the diaphragm. My thought was that it would be a replacement to mylar as a diaphragm. It would have to be a lot more then a molecule thick just to handle it. Being very conductive, the Graphene will need to have some sort of resistive coating, or maybe it could be manufactured in a staggered pattern to reduce the flow of electrons..... Not sure, but the potential of better sound quality is there with the use of Graphene.
If you who are allowed near the kitchen want to experiment, have a look at this link:
BBC News - Graphene 'wonder material' made with kitchen blender
And made in dirty ol' Dublin!
BBC News - Graphene 'wonder material' made with kitchen blender
And made in dirty ol' Dublin!
But maybe it could be used for ribbon -speakers and -microphones and also for condenser microphones
Regards
Charles
Edit:
Forgot to mention: While a cone for a speaker couldn't be made with graphene only, maybe it could be used as coating on both sides of a cone. Or nanotubes could be used as filler for cone materials.
Regards
Charles
Edit:
Forgot to mention: While a cone for a speaker couldn't be made with graphene only, maybe it could be used as coating on both sides of a cone. Or nanotubes could be used as filler for cone materials.
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Such considered insight
Actually polymers reinforced with graphene are believed to be very strong. A single layer may not of itself do the trick, however, like carbon fibre and graphite, they are made up with resins and are compressed - so if truth be told this is not nonsense.
I am of the personal view that a loudspeaker cone with a Rohacell core, a carbon fibre/polymer skin reinforced with graphene should achieve the following:
1. very low weight
2. very stiff
this means that the drivers will manage to track and follow the dynamics of sound very well.
In addition to this - graphene is not toxic like beryllium, nor expensive lie diamond, and is flexible unlike ceramics.
Actually polymers reinforced with graphene are believed to be very strong. A single layer may not of itself do the trick, however, like carbon fibre and graphite, they are made up with resins and are compressed - so if truth be told this is not nonsense.
I am of the personal view that a loudspeaker cone with a Rohacell core, a carbon fibre/polymer skin reinforced with graphene should achieve the following:
1. very low weight
2. very stiff
this means that the drivers will manage to track and follow the dynamics of sound very well.
In addition to this - graphene is not toxic like beryllium, nor expensive lie diamond, and is flexible unlike ceramics.
Aside from the thrill of cooking up some graphene, I was delighted to discover I am already on the way with the "Avery" frame* they used.
Graphene has been in threads for a couple of seasons now apropos ESLs. No question in my mind this is going to be a valuable technology for the future, even if not quite DIY sphere. Likes ESLs, it means moving light-as-air surfaces to make sound (and the air providing degenerative feedback) instead of shaking heavy cardboard cones without feedback.
Ben
*I have a whole box of those "Avery" stick-on frames in my office. They are known as "ring binder reinforcements" ... you glue them over damaged punch-holes in your 3-ring binder paper (if you are old enough to know what a 3-ring binder is). Or maybe a big-brother to the ring-binder reinforcements. I had a big chuckle when I realized what this high-tech item is.
Graphene has been in threads for a couple of seasons now apropos ESLs. No question in my mind this is going to be a valuable technology for the future, even if not quite DIY sphere. Likes ESLs, it means moving light-as-air surfaces to make sound (and the air providing degenerative feedback) instead of shaking heavy cardboard cones without feedback.
Ben
*I have a whole box of those "Avery" stick-on frames in my office. They are known as "ring binder reinforcements" ... you glue them over damaged punch-holes in your 3-ring binder paper (if you are old enough to know what a 3-ring binder is). Or maybe a big-brother to the ring-binder reinforcements. I had a big chuckle when I realized what this high-tech item is.
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It will revolutionize power caps and their size. Everyone complains about dirty mains power - enter graphene batteries with the real world potential to store 50 or 100 x existing battery types.
I want to escape the clutches of big brother - in France where I live his name is EDF - electricitie de france. With graphene batteries and efficient new generation wind turbines I will never need to be connected to EDF and with a back up generator this is guaranteed.
With modern inverters (preferably using transformers rather than mosfets) with AVR - automatic voltage regulation I shall have spike and brown out free stable power - huge implications for PSU configurations - bring it on.
I want to escape the clutches of big brother - in France where I live his name is EDF - electricitie de france. With graphene batteries and efficient new generation wind turbines I will never need to be connected to EDF and with a back up generator this is guaranteed.
With modern inverters (preferably using transformers rather than mosfets) with AVR - automatic voltage regulation I shall have spike and brown out free stable power - huge implications for PSU configurations - bring it on.
First Graphene earphones available Mar. 2018
Now Graphene earphones will be available soon:
ORA: The World’s First Graphene Headphones by ORA Graphene Audio —Kickstarter
The interesting thing will be - when will speaker drivers be available?
Now Graphene earphones will be available soon:
ORA: The World’s First Graphene Headphones by ORA Graphene Audio —Kickstarter
The interesting thing will be - when will speaker drivers be available?
They already are, if you can afford a pair of Magicos. Ora is providing the graphene for their proprietary loudspeaker cones.
Thanks much. Very interesting and described with academic-like care in that little write-up.
Diaphragms made from glued-together snippets of graphene. So only as good as the glue.
But what about the massive weight of the voice coil?
Yes, can't be long before we find it in speakers, hopefully not the ancient Rice-Kellogg design.
B.
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