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Forum index » Science and Technology » Physics » Research
Oil Revisited
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Ian Taylor
science forum beginner


Joined: 13 Jun 2005
Posts: 10

PostPosted: Mon Jul 17, 2006 3:32 pm    Post subject: Re: Oil Revisited Reply with quote

Bill_Vajk wrote:
Quote:
For a jumping off point: http://tinyurl.com/l63rx
news:3DCC3733.8030802@hotmail.com

See also: Xu Tao: J. Phys. D: Appl. Phys. 29 (1996) 2932-2937

"The ball-bearing effect of diamond nanoparticles as an oil additive"

A friend of mine has the North American distribution rights for Russian
nanodiamonds.
I am able to provide small quantities of oil blended with nanodiamonds
to qualified
researchers.

I think nanodiamonds blended into oil raises some interesting issues.
There is a polishing
attribute which likely alters the sorts of turbulance in lubricating
and hydraulic oils and
consequently the nature of the "electrircal storms" touched on in this
forum earlier.

Additionally some wonderful questions arise when one contemplates the
semiconductor
nature of the nanodiamonds populating this environment.

Bill Vajk

As someone who is a member of the STLE (the Society of Tribologists and
Lubrication Engineers) and also a theoretical physicist perhaps you
could enlighten me on why putting in solid particles of diamond (one of
the hardest substances known to man) would give any benefit at all to a
lubricant !

In most cases, we go to great extremes to avoid any contamination of
liquid lubricants - if such contamination does occur it generally leads
to wear problems. A "polishing attribute" is not generally something
that lubricants are meant to deliver (since polishing indicates that
some kind of wear is occurring).

I am aware that people have tried to put fullerenes into lubricants,
with the hope that they act as a rolling element (rolling is generally
much less severe than sliding, in lubricated contacts), but even here,
a recent Phys Rev Letters paper (published this year) showed that the
friction coefficient was higher when the fullerenes were present than
when they were not.

Ian Taylor
http://www.iantaylor.org.uk/
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Bill_Vajk
science forum beginner


Joined: 08 Jul 2006
Posts: 1

PostPosted: Sat Jul 08, 2006 2:37 pm    Post subject: Oil Revisited Reply with quote

For a jumping off point: http://tinyurl.com/l63rx
news:3DCC3733.8030802@hotmail.com

See also: Xu Tao: J. Phys. D: Appl. Phys. 29 (1996) 2932-2937

"The ball-bearing effect of diamond nanoparticles as an oil additive"

A friend of mine has the North American distribution rights for Russian
nanodiamonds.
I am able to provide small quantities of oil blended with nanodiamonds
to qualified
researchers.

I think nanodiamonds blended into oil raises some interesting issues.
There is a polishing
attribute which likely alters the sorts of turbulance in lubricating
and hydraulic oils and
consequently the nature of the "electrircal storms" touched on in this
forum earlier.

Additionally some wonderful questions arise when one contemplates the
semiconductor
nature of the nanodiamonds populating this environment.

Bill Vajk
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