AudioNervosa

Specialists => Audiologists => Topic started by: P.I. on November 10, 2017, 12:42:45 PM

Title: Graphene...
Post by: P.I. on November 10, 2017, 12:42:45 PM
Who besides Rollo has used it?

I have received a bottle fromThe Mad Scientist.  I'll be testing it out and have a few receptacles going out to my BetaDudes.

For a short time only if you want to send an AC receptacle to me I'll treat it and send it back.  All it will cost is return postage.

PM me if you are interested.
Title: Re: Graphene...
Post by: dflee on November 10, 2017, 01:53:56 PM
Don't know if they still offer free samples of their discs but I got a couple.
I think they helped in a marginal way (actually pretty good for free). Haven't heard any scutttlebut
about them and honestly forgot about them. I have other issues I'm trying to resolve but will look
into their products in the future. If I had any receptacles worth anything I would send em to ya.

Don
Title: Re: Graphene...
Post by: S Clark on November 10, 2017, 06:11:56 PM
Dave,
What is the effect and how is it applied?  Could it have positive effects on the SurgeX I sent you? If you think it's worthwhile, I'll send a couple of receptacles your way as well.
Scott
Title: Re: Graphene...
Post by: malloy on November 10, 2017, 10:57:37 PM
I'd be interested, too. But what is it exactly? I tried googling, couldn't find any info.
Title: Re: Graphene...
Post by: dBe on November 12, 2017, 02:57:00 PM
I'd be interested, too. But what is it exactly? I tried googling, couldn't find any info.
Here you go:  [url][https://escholarship.org/uc/item/339425tf/url]

I'll post more tomorrow on the applications and reasons for its use in audio.
Title: Re: Graphene...
Post by: malloy on November 12, 2017, 10:11:10 PM
Thanks, Dave.  Just what I am looking for - light reading on a Sunday night:  a PhD dissertation on the electrical and mechanical properties of nanoscale graphene!  :) But seriously, this looks like it is cutting edge stuff!

If its conductivity is better than copper,what will it do the sound? :?:
Title: Re: Graphene...
Post by: rollo on November 13, 2017, 09:48:27 AM
Yes it is cutting edge and very effective. Just to let you all know Rollo Audio is the US dealer. The tweaks like pucks and Magic Tubes are recommended to try once you believe you are properly set up. Then you will appreciate the tweaks as you can discern more. I have all in stock. Tube dampers Discs, Magic Tubes, speaker sticks, graphene.


charles
Title: Re: Graphene...
Post by: HAL on November 13, 2017, 10:30:55 AM
Looking forward to the listening results. 

Caig products have been my standard for decades.  Will be interesting to hear if graphene is now the improvement.
Title: Re: Graphene...
Post by: P.I. on November 13, 2017, 06:35:21 PM
Thanks, Dave.  Just what I am looking for - light reading on a Sunday night:  a PhD dissertation on the electrical and mechanical properties of nanoscale graphene!  :) But seriously, this looks like it is cutting edge stuff!

If its conductivity is better than copper,what will it do the sound? :?:
Gonna find out pretty quick.

But.

I'm less interested in finding some black magic voodoo juice.  Instead I'm looking for something that sounds good and then stays that way.  I've used every treatmet known to man and the only ones I like are Jena Labs supercalifragilistic contact enhancer.  It really is good... the best one I'e found to date including some strange brews from the toasty brain of me.  Even so, it screams for me to clean and reapply every 8-10 monts.  From the meter to the speaker cable connectors and interconnects.  Bummer...

It seems to be another one of the new edge charged materials that wants to spread out over and into everything that it can transported by a fairly viscous but seemingly penetrating oil.  The oil for me is the boon that I see.  Depending upon the oil it can maintain viscous characteristics for years.  Combine that characteristic with a max operating temperature of 390 degrees fahrenheit.  Just the kind of thing for tube pins to kill the scale for a long time.  I hate the occasional - is that tube OK? - thing.  It will be good to know that there may be such a things as true tube stability in socket for a year or two.  That would be awesome.  Also, its' affinnity for copper, brass and bronze is particularly interesting to me.  I'm working on a receptacle or two for sale at very reasonable prices that will change your world when it comes to those brass receptacles that your house came with.

For a tweak where less than a drop will do you, kinda silly not to give it listen.

Good to see the man the myth the legend.... blah, blah, blah... is carrying it.  I like doing business with people that I trust and do business with me.

Oh, yeah:  rollo >   >   >   

 :thumb:   
Title: Re: Graphene...
Post by: P.I. on November 13, 2017, 06:37:51 PM
Dave,
What is the effect and how is it applied?  Could it have positive effects on the SurgeX I sent you? If you think it's worthwhile, I'll send a couple of receptacles your way as well.
Scott
Scott, It's like chicken soup.  It couldn't hurt!  [-o<
Title: Re: Graphene...
Post by: rollo on November 15, 2017, 07:36:21 AM
The Graphene need be applied once. Works with high temperatures without issue. Does not migrate either. Once applied with thin coating one needs to blot off with cotton.
Get cracking DAVE we would like your opinion.

charles
Title: Re: Graphene...
Post by: mdconnelly on November 15, 2017, 08:33:56 AM
Each year, around the holidays, I've had the ritual of cleaning all contacts.  I probably started doing this 20 or more years ago - almost as much of a ritual in December as putting up the Christmas tree.   As much as I'd love for graphene to be a miracle contact enhancer, I may still take the time to dust things abit  :rofl:
Title: Re: Graphene...
Post by: _Scotty_ on November 15, 2017, 10:19:08 AM
This may seem like a stupid question, but how do you know there is any graphene present in the product.
Graphene coated wire I get. The wire will have a transparent coating possibly a couple of atoms thick that is stronger than steel. If you were to try to scrape the conductor you probably couldn't remove any copper surface from the wire due to the presence of the graphene layer.
Scotty
Title: Re: Graphene...
Post by: P.I. on November 15, 2017, 11:36:27 AM
This may seem like a stupid question, but how do you know there is any graphene present in the product.
Graphene coated wire I get. The wire will have a transparent coating possibly a couple of atoms thick that is stronger than steel. If you were to try to scrape the conductor you probably couldn't remove any copper surface from the wire due to the presence of the graphene layer.
Scotty
Trust.
Title: Re: Graphene...
Post by: S Clark on November 15, 2017, 01:06:40 PM
This may seem like a stupid question, but how do you know there is any graphene present in the product.
Graphene coated wire I get. The wire will have a transparent coating possibly a couple of atoms thick that is stronger than steel. If you were to try to scrape the conductor you probably couldn't remove any copper surface from the wire due to the presence of the graphene layer.
Scotty
Kinda like buying Ohno wire, cryo treatment, or Telefunken tubes from China.  You have to know your source.
Title: Re: Graphene...
Post by: rollo on November 19, 2017, 11:40:25 AM
Well I can tell you without doubt that this product is the real deal. Bob Pragnell "Mad Scientist" is an honorable manf. of fine cables and tweaks.



charles
Title: Re: Graphene...
Post by: Nick B on November 20, 2017, 10:10:39 PM
I hope this is the real deal. I’ve never messed with these tweaks as I don’t want to reapply every 6 - 12 months.
Title: Re: Graphene...
Post by: P.I. on December 08, 2017, 01:32:39 PM
This is the first of what will be an ongoing open discussion about what we all hear, or don't when using graphene applications.

Before I get to my findings there are a few observations.

1.     It is like Caig Pro Gold in that the smallest amount that will give coverage is what you want.  No doubt... it gets a tad messy.   

2.     Tube pins and sockets are a no brainer.  395 degree F is plenty of tolerance

3.     Use it on your highest gain, lowest signal components first. This includes AC cable and receptacle applications.  It is easier to follw just what is happening sonically than working from the heavy lifters like amps first.  When it comes to audio... any form of audio, not just digital : GIGO.  Clean up the most delicate aspects of the signal chain first.  I'm not sure why a lot of people just don't understand it.

On to my qualifications and observations.

The graphene is a viscuous oily concoction that looks like it contains, uhm... graphite.  Smells like mineral oil.  I applied this concoction to one of my cryoed Hand Polished P&S 5362A receptacles that is my reference of comparison.  It is very neutral, has a firm controlled LF, organic mids and bell like highs.  Great standard commercial receptacle.  The challenge is getting a very thin coating on contacts that are inside the recpetacle.  I did mine while the receptacle was apart after polishing and ultrasonic cleaning.  I installed it into my breakin in fixture, plugged in a load and let it cook for about 5 days with a 7A load.  Then it went into a DigiBUSS+ prototype and fed the DAC and mini whose contact had been treated.

What did I or did I not hear?

Not much.

I did not hear the inherent noise in the electrical connections that were there before.  This took quite a whie to figure out, even with me being the Noise Hunter in AC and DC.  This was a subtle, but welcome addition (subtraction) from an already very low noise floor in my system.  My system at present is a tiny one that just makes music.  Bare bones as I am a less is more guy anyhow.  I'm working on new speakers that should be online shortly after New Years... 

Removing noise is my Holy Grail.  Every bit of noise that is removed from a system gives a system that is spending its effort in reproducing the music and not that insidious noise that is there is 90% of the systems in use.

Basically what I heard was a reduction in that small amount of hair that is exemplary of very low level noise.  The spurious sizzles, ticks, extremely low level hums... all of that crap is musical energy waiting to happen.  The net is a smoother presentation with delicate highs and intimate mids with a tuneful low end.  I like a nice firm bottom.

For me graphene treatment is a no brainer.  I will be using it on all of my power filtration products in the future.  My bottom line:  I was listening and said "Nice" out loud to an empty room, save me and Marc Cohn.

Talk to Charles Rollo.  It is like chicken soup : It couldn't hurt!   8)
Title: Re: Graphene...
Post by: mdconnelly on December 09, 2017, 05:59:24 AM
Dave, thanks for taking this on!    :thumb: 

So can you briefly compare the sonic benefits of graphene to Caig Pro Gold?   Even if the sonic improvement is the same, I'm hoping the use of graphene will last a good bit longer before needing to be reapplied.   
Title: Re: Graphene...
Post by: P.I. on December 10, 2017, 05:46:10 PM
Dave, thanks for taking this on!    :thumb: 

So can you briefly compare the sonic benefits of graphene to Caig Pro Gold?   Even if the sonic improvement is the same, I'm hoping the use of graphene will last a good bit longer before needing to be reapplied.
I've never been a fan of ProGold in particular and Caig, with the exception of De-Oxit, in general. The stuff works great in the short term, but needs to be CLEANED OFF and reapplied every so often depending upon where we live.  It is kind of like buying Thompson's Water Seal for masontry and finding out that it needs refreshing every year instead of spending 5 times as much for this - Siloxa-Tek 8500 - that is good for 5-10 years.

Concrete rant over!

Mike it all comes down to the carrier properties.  Materials applied with a brush are more effective from a longevity aspect in general.  De-Oxit from the bottle was always better than from the spray.  For the ease of control, for sure.

What most people don't mention is that the Caig Products are best used in the smallest amount possible.

The thing that I have liked so far is the drop spread comparison that I'm doing.  I put a small drop - ~ 3mm on a piece of high density polypropylene to check the cold flow of the Grephene product VS 3 other contact enhancers that I had o hand. By an order of magnitude of magnitude or more, it had the least amount of substrate creep of all of the treatments.  I like contact enhancers that don't crawl all over the connectors just because they can.

I really do think that this might be THAT enhancer that will actually have a use/life curve of our liking.  I', getting older.  I don't need to worship at the alley thrones of the audio gods much anymore.  Been there, done that.


Like I said, I'm making it one of my staples.  These would be:

Xylene
Methanl alcohol
Isopropyl alcohol (91%)
hydrogen peroxide 30%
MEK
De-Oxit
Breakfree
Brake cleaner
Jena Labs contact enhancer
deionized water

For the drinkers in the crowd: Absolute Vodka and Everclear will replace 50% of these solvents.  Just be careful!

Anyway, after "it" is cleaned, everythihg works, just some things work better.  So far those are hydrogen peroxide, DeOxit, Jena Labs, and the Mad Scientist Graphene Contact enhancers to be great!

Hydrogen peroxide in 30% - 35% reductions are available at stores that specialize in supplying hairdressers goods and restaurant food sanitization services.  Be very, very careful when using it.  It is a surface cleaner and degreaser par excellence, but is an aggressive organic solvent and really effective at cleaning up audio plug and connector grunge-ola.  Wear gloves when handling this material and pay attention to your body.  When working on an implanter that I was cleaning with H2O2 I thought that I felt a tingle in two of my fingers.  I was triple cuffed for this particular job, but emerged to find ou that somehow H2O2 got through the gloves and I lost nails on my first and second fingers of my left hand. Lost some flesh, too.  Looked like... ewwwwww .. !?! # 😲    Just goes to remind us all how important it is to do the right thing and run true in our older years.

Title: Re: Graphene...
Post by: rollo on December 11, 2017, 10:22:10 AM
Good thorough review Dave. If anyone is interested PM me. I'm loving it on Cart pins, and IC's so far. Tube pins now as well. The key is to use little and blot it off. It will NOT migrate.
Just make sure you clean the surface to be treated with Jena Labs.


charles
Title: Re: Graphene...
Post by: rollo on December 11, 2017, 10:31:17 AM
  FUSES, FUSES, FUSES how could I forget FUSES just wait til ya try. Dave go to the fuse and holder oh my !!


charles
Title: Re: Graphene...
Post by: P.I. on December 13, 2017, 11:12:18 AM
Good thorough review Dave. If anyone is interested PM me. I'm loving it on Cart pins, and IC's so far. Tube pins now as well. The key is to use little and blot it off. It will NOT migrate.
Just make sure you clean the surface to be treated with Jena Labs.


charles
The Jena Labs enhancer is the best I've tried so far as to slowing oxidation.  Now, with the Mad Scientist goo life is getting easier.
Title: Re: Graphene...
Post by: mikeeastman on January 29, 2018, 01:36:42 PM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?
Title: Re: Graphene...
Post by: dBe on January 29, 2018, 09:37:43 PM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?
Mike,

I have several receptacles out for audition. Unfortunately one of my BetaDudes has been slammed with family and work.

Email me to see what we can do.
Title: Re: Graphene...
Post by: rollo on January 30, 2018, 11:36:47 AM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?

  Yes that is why no samples were returned to me. Quieter, improved focus and imaging, larger sound stage. One gets all the good things associated with a solid connection.



charles
Title: Re: Graphene...
Post by: HAL on February 22, 2018, 09:53:17 PM
Got my 2ml tube of GCE today in the mail. 

First test will be the Laney KLIPP 60 watt guitar amp head on the output tube contacts.  Have to put in new EL34 sockets after arcing one output tube and socket when the impedance select switch died.  HV is running 560VDC at idle on the OTCT.   More on the connections to the 412. 

This should be interesting. 
Title: Re: Graphene...
Post by: Triode Pete on February 23, 2018, 06:55:04 AM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?

  Yes that is why no samples were returned to me. Quieter, improved focus and imaging, larger sound stage. One gets all the good things associated with a solid connection.



charles

Still waiting on my sample...  :duh
Title: Re: Graphene...
Post by: rollo on February 23, 2018, 07:44:54 AM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?

  Yes that is why no samples were returned to me. Quieter, improved focus and imaging, larger sound stage. One gets all the good things associated with a solid connection.



charles

Still waiting on my sample...  :duh

  Good things come in time. When you get a free day come on over ,ya never know what lurks in the coffins of rollo land.
Dave the outlet you sent me is an improvement over your previous ones. Dead quiet. Bigger sound stage. Better focused. More weight to sound. VG job.


charles
Title: Re: Graphene...
Post by: P.I. on February 23, 2018, 11:13:44 AM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?

  Yes that is why no samples were returned to me. Quieter, improved focus and imaging, larger sound stage. One gets all the good things associated with a solid connection.



charles

Still waiting on my sample...  :duh
I'll send you one of my new versions, Pete.
Title: Re: Graphene...
Post by: TomS on June 15, 2018, 07:16:36 AM
Recent article from Purdue Research:

Is tellurene the new graphene?

“The chiral-chain van der Waals structure of tellurene gives rise to strong in-plane anisotropic properties and large thickness-dependent shifts in Raman vibrational modes, which is not observed in other 2D layered materials.”

"Contrary to what you may think, this fragment was not written by AI, but by real researchers from Purdue University (USA) who have come up with a new material to make faster transistors with.

Tellurene is a two-dimensional crystal created from the rare element tellurium. Its special property that makes it interesting for use in electronics is the fact that electrons and holes move faster in it than in other materials. This property may be exploited to create faster transistors or smaller transistors that can switch higher currents.

Other important properties of tellurene are its stability at room temperature and the fact that it can be produced quite easily. Other tellurene-like two-dimensional materials, such as graphene, black phosphorus and silicene, are either not stable at room temperature or production in high quantities is difficult.

Also, compared to other 2D materials, tellurene crystals or flakes tend to be larger meaning less barriers in a tellurene semiconductor allowing it to carry higher currents.

Although tellurium is pretty rare, according to the researchers this is not a problem because only very small quantities are required."

Source: Purdue University
Title: Re: Graphene...
Post by: Nick B on June 15, 2018, 09:20:09 AM
Recent article from Purdue Research:

Is tellurene the new graphene?

“The chiral-chain van der Waals structure of tellurene gives rise to strong in-plane anisotropic properties and large thickness-dependent shifts in Raman vibrational modes, which is not observed in other 2D layered materials.”

"Contrary to what you may think, this fragment was not written by AI, but by real researchers from Purdue University (USA) who have come up with a new material to make faster transistors with.

Tellurene is a two-dimensional crystal created from the rare element tellurium. Its special property that makes it interesting for use in electronics is the fact that electrons and holes move faster in it than in other materials. This property may be exploited to create faster transistors or smaller transistors that can switch higher currents.

Other important properties of tellurene are its stability at room temperature and the fact that it can be produced quite easily. Other tellurene-like two-dimensional materials, such as graphene, black phosphorus and silicene, are either not stable at room temperature or production in high quantities is difficult.

Also, compared to other 2D materials, tellurene crystals or flakes tend to be larger meaning less barriers in a tellurene semiconductor allowing it to carry higher currents.

Although tellurium is pretty rare, according to the researchers this is not a problem because only very small quantities are required."

Source: Purdue University

Interesting stuff....and the technology continues to develop. Maybe a new application indeed for audio. Makes me wonder if it would be able to be applied over a graphene treated substance.
Title: Re: Graphene...
Post by: P.I. on June 15, 2018, 05:57:47 PM
Charles, has anyone other than Dave tried out the Graphene? Have you gotten any other feed back?

  Yes that is why no samples were returned to me. Quieter, improved focus and imaging, larger sound stage. One gets all the good things associated with a solid connection.



charles

Still waiting on my sample...  :duh
I'll send you one of my new versions, Pete.
OK.  I got my order today.  I’ll be sending you one next week.  A hand polished 5362A is already pretty special.  I look forward to your assessment.
Title: Re: Graphene...
Post by: P.I. on June 18, 2018, 08:17:08 PM
I just received 2 graphene samples from a cool guy that is wanting to help me in developing treatment products.  The testing begins at the end of this week.  Gonna be very interesting  :thumb:
Title: Re: Graphene...
Post by: tmazz on June 19, 2018, 12:36:11 PM
I just received 2 graphene samples from a cool guy that is wanting to help me in developing treatment products.  The testing begins at the end of this week.  Gonna be very interesting  :thumb:


Game on!  :)
Title: Re: Graphene...
Post by: P.I. on June 20, 2018, 06:16:32 PM
I just received 2 graphene samples from a cool guy that is wanting to help me in developing treatment products.  The testing begins at the end of this week.  Gonna be very interesting.  I’ve been doing a lot of research concerning carrier liquids and diluents.  The results are very good so far.  More, later!

Cool, so far.
Title: Re: Graphene...
Post by: P.I. on June 23, 2018, 09:23:22 PM
I have been revisiting chemistry for about the last 2 months.  Of course the object of my curiosity has been a reasonable application of and for graphene for all electrical applications in audio.  During this research I came across what I believe to be a superior contact enhancer for any audio context.  It combines several different chemical elements to offer the attributes of Craig products along with Jena Labs fluids.  It is safe for use on plastics and a tiny amount goes a very long way in both cleaning and enhancement of conductivity between surfaces.

I will be ready to supply the contact treatment at the end of next week.  A bottle capable of providing hundreds treatments will be $15.00 plus shipping ($4.00) via First Class Mail.  It will come with 6 small applicators so you can’t overuse it.  That is the biggest problem with spray application and why DeOxit is 90% volatile diluents.  Still, people tend to think that if a little is good, a lot is better.  Nothing could be farther from the truth.  Using just barely enough of any contact treatment is what we want to do.  So many “contact treatments” migrate and attract ionic particulates, smoke, dust, skin cells... etc.

I really do believe that this is the best contact treatment available that I have used to date.  I like it, several other beta dudes do, too.  As always a full money back guarantee applies to all purchases.

Let me know if you are interested and I will hook you up.

I am still working on the final formulation and pricing on the graphene treatment.  Mostly I am trying to get the final cost within what I consider to be reasonable limits.

This has been an interesting couple of months learning and relearning all of those things I learned in organic chemistry hundreds of years ago.  Kind of like alchemy...
Title: Re: Graphene...
Post by: Nick B on June 23, 2018, 11:20:36 PM
I have been revisiting chemistry for about the last 2 months.  Of course the object of my curiosity has been a reasonable application of and for graphene for all electrical applications in audio.  During this research I came across what I believe to be a superior contact enhancer for any audio context.  It combines several different chemical elements to offer the attributes of Craig products along with Jena Labs fluids.  It is safe for use on plastics and a tiny amount goes a very long way in both cleaning and enhancement of conductivity between surfaces.

I will be ready to supply the contact treatment at the end of next week.  A bottle capable of providing hundreds treatments will be $15.00 plus shipping ($4.00) via First Class Mail.  It will come with 6 small applicators so you can’t overuse it.  That is the biggest problem with spray application and why DeOxit is 90% volatile diluents.  Still, people tend to think that if a little is good, a lot is better.  Nothing could be farther from the truth.  Using just barely enough of any contact treatment is what we want to do.  So many “contact treatments” migrate and attract ionic particulates, smoke, dust, skin cells... etc.

I really do believe that this is the best contact treatment available that I have used to date.  I like it, several other beta dudes do, too.  As always a full money back guarantee applies to all purchases.

Let me know if you are interested and I will hook you up.

I am still working on the final formulation and pricing on the graphene treatment.  Mostly I am trying to get the final cost within what I consider to be reasonable limits.

This has been an interesting couple of months learning and relearning all of those things I learned in organic chemistry hundreds of years ago.  Kind of like alchemy...

Dave,
Does this new product need to be reapplied every 6 months to a year or is it much longer lasting?
Nick
Title: Re: Graphene...
Post by: P.I. on June 24, 2018, 10:35:08 AM
I have been revisiting chemistry for about the last 2 months.  Of course the object of my curiosity has been a reasonable application of and for graphene for all electrical applications in audio.  During this research I came across what I believe to be a superior contact enhancer for any audio context.  It combines several different chemical elements to offer the attributes of Craig products along with Jena Labs fluids.  It is safe for use on plastics and a tiny amount goes a very long way in both cleaning and enhancement of conductivity between surfaces.

I will be ready to supply the contact treatment at the end of next week.  A bottle capable of providing hundreds treatments will be $15.00 plus shipping ($4.00) via First Class Mail.  It will come with 6 small applicators so you can’t overuse it.  That is the biggest problem with spray application and why DeOxit is 90% volatile diluents.  Still, people tend to think that if a little is good, a lot is better.  Nothing could be farther from the truth.  Using just barely enough of any contact treatment is what we want to do.  So many “contact treatments” migrate and attract ionic particulates, smoke, dust, skin cells... etc.

I really do believe that this is the best contact treatment available that I have used to date.  I like it, several other beta dudes do, too.  As always a full money back guarantee applies to all purchases.

Let me know if you are interested and I will hook you up.

I am still working on the final formulation and pricing on the graphene treatment.  Mostly I am trying to get the final cost within what I consider to be reasonable limits.

This has been an interesting couple of months learning and relearning all of those things I learned in organic chemistry hundreds of years ago.  Kind of like alchemy...

Dave,
Does this new product need to be reapplied every 6 months to a year or is it much longer lasting?
Nick
Nick, it will be longer lasting than the treatments that I know of, but connections should be cleaned at least every 6 months or so anyway.  Any time there is a mechanical connection that carries voltage there will be attraction of ions to that connection.  Like I said above, microscopic ions will get into the connection.  That’s why contact cleaners have to be used in the first place.  There are over one million particles .3 microns or larger in a cubic foot of air.  Every one of them has an electrical potential.  They are what build up on electrical contacts and create the nasty schmutz that cause conductivity problems.
Title: Re: Graphene...
Post by: P.I. on June 25, 2018, 11:48:40 AM
Recent article from Purdue Research:

Is tellurene the new graphene?

“The chiral-chain van der Waals structure of tellurene gives rise to strong in-plane anisotropic properties and large thickness-dependent shifts in Raman vibrational modes, which is not observed in other 2D layered materials.”

"Contrary to what you may think, this fragment was not written by AI, but by real researchers from Purdue University (USA) who have come up with a new material to make faster transistors with.

Tellurene is a two-dimensional crystal created from the rare element tellurium. Its special property that makes it interesting for use in electronics is the fact that electrons and holes move faster in it than in other materials. This property may be exploited to create faster transistors or smaller transistors that can switch higher currents.

Other important properties of tellurene are its stability at room temperature and the fact that it can be produced quite easily. Other tellurene-like two-dimensional materials, such as graphene, black phosphorus and silicene, are either not stable at room temperature or production in high quantities is difficult.

Also, compared to other 2D materials, tellurene crystals or flakes tend to be larger meaning less barriers in a tellurene semiconductor allowing it to carry higher currents.

Although tellurium is pretty rare, according to the researchers this is not a problem because only very small quantities are required."

Source: Purdue University
Tom, when you posted this it piqued my interest so I started doing some research.  Some of the experimental recipes that we used at Philips Semiconductor utilized dimethyl telluride in epitaxy and I remember it as producing a really folder.  I don't think we used it is implant... can't remember  Too much inside baseball, sorry.

I think that any audioapplications will be limited to tellurium copper , at least for the near future, but I've been out of the semi industry for some years and don't know where it is headed there.

I'm busy enough with the graphene research I'm doing. Yikes! 
Title: Re: Graphene...
Post by: TomS on June 25, 2018, 11:54:06 AM
Recent article from Purdue Research:

Is tellurene the new graphene?

“The chiral-chain van der Waals structure of tellurene gives rise to strong in-plane anisotropic properties and large thickness-dependent shifts in Raman vibrational modes, which is not observed in other 2D layered materials.”

"Contrary to what you may think, this fragment was not written by AI, but by real researchers from Purdue University (USA) who have come up with a new material to make faster transistors with.

Tellurene is a two-dimensional crystal created from the rare element tellurium. Its special property that makes it interesting for use in electronics is the fact that electrons and holes move faster in it than in other materials. This property may be exploited to create faster transistors or smaller transistors that can switch higher currents.

Other important properties of tellurene are its stability at room temperature and the fact that it can be produced quite easily. Other tellurene-like two-dimensional materials, such as graphene, black phosphorus and silicene, are either not stable at room temperature or production in high quantities is difficult.

Also, compared to other 2D materials, tellurene crystals or flakes tend to be larger meaning less barriers in a tellurene semiconductor allowing it to carry higher currents.

Although tellurium is pretty rare, according to the researchers this is not a problem because only very small quantities are required."

Source: Purdue University
Tom, when you posted this it piqued my interest so I started doing some research.  Some of the experimental recipes that we used at Philips Semiconductor utilized dimethyl telluride in epitaxy and I remember it as producing a really folder.  I don't think we used it is implant... can't remember  Too much inside baseball, sorry.

I think that any audioapplications will be limited to tellurium copper , at least for the near future, but I've been out of the semi industry for some years and don't know where it is headed there.

I'm busy enough with the graphene research I'm doing. Yikes!
Yes, for semi's it's all about smaller geometry and lower power, Gordon Moore et al ...
Title: Re: Graphene...
Post by: P.I. on June 25, 2018, 12:06:54 PM

Yes, for semi's it's all about smaller geometry and lower power, Gordon Moore et al ...
My son-in-law Brian is with ASM and we were talking about all of this a couple of days ago.  They have a landscape/voltage/current density wall that they are up against in miniaturization that is proving to be a formidable task.

Quantum computers?  Biological (virus) computing?  Who knows?
Title: Re: Graphene...
Post by: jhrlrd on July 26, 2018, 10:35:20 AM
Dave, in your testing have you tried the "perfect Path" contact enhancer?
It's supposed to do what the Graphene does, plus after it dries, forms a barrier
to further oxidization.
Title: Re: Graphene...
Post by: P.I. on July 26, 2018, 11:01:50 AM
Dave, in your testing have you tried the "perfect Path" contact enhancer?
It's supposed to do what the Graphene does, plus after it dries, forms a barrier
to further oxidization.
Nope.  I'm trying to put out products that are over achievers in the performance/expense arena.  While graphene nano flake is expensive its beauty is that it takes VERY little to work its magik.

The hardest part of bringing P.I. Graphene to market was finding the proper formula for the carrier chemical.  It is comprised of 7 different materials of which a small percentage is a volitile diluent.  The rest of the carrier is non-volatile and forms a single molecule thick agent under pressure.  This carries the graphene.  It is formulated to prevent oxidation in the point of contact by making an air excluding barrier.

I guess it is two different approaches to a common problem. 
Title: Re: Graphene...
Post by: steve on July 29, 2018, 09:07:57 PM
Quote
The Jena Labs enhancer is the best I've tried so far as to slowing oxidation.  Now, with the Mad Scientist goo life is getting easier.

I can vouch for liking Jenalabs enhancer. My experience is a little different, but still good. I used the enhancer on the tube pins of my amplifier and it made the voices/music slightly more dense, certainly more real, which I like.

When I used it on input, output, preamplifier, speaker jacks/plugs, the sound because just slightly less dense across the board. So I am using it only on my amp tube pins. (My 11A was specially listening tested without any enhancer, to be accurate, so not used on/in the 11A.)

I guess one could say that I was fine tuning my audio system for optimum, natural reproduction. I recommend Jenalabs enhancer.

I have not tried any other products; just spray cleaning of jacks, plugs, tube pins with no residue cleaner.

cheers

steve