Carbyne from first principles

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

Moderators: tonybarry, MSimon

DeltaV
Posts: 2245
Joined: Mon Oct 12, 2009 5:05 am

Carbyne from first principles

Postby DeltaV » Thu Oct 10, 2013 3:38 pm

http://arxiv.org/ftp/arxiv/papers/1308/1308.2258.pdf
We report an extensive study of the properties of carbyne using
first-principles calculations. We investigate carbyne’s mechanical
response to tension, bending, and torsion deformations. Under tension,
carbyne is about twice as stiff as the stiffest known materials and has an
unrivaled specific strength of up to 7.5×10^7 N∙m/kg, requiring a force of
~10 nN to break a single atomic chain.

GIThruster
Posts: 4686
Joined: Tue May 25, 2010 8:17 pm

Re: Carbyne from first principles

Postby GIThruster » Thu Oct 10, 2013 3:56 pm

Fascinating. I had never heard of this before, which is odd given how much reading I've done on nanotubes and graphene.

Reminds of the old "molecular knife" in Traveller.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

ladajo
Posts: 6074
Joined: Thu Sep 17, 2009 11:18 pm
Location: North East Coast

Re: Carbyne from first principles

Postby ladajo » Thu Oct 10, 2013 4:07 pm

I think this is new in the wild.

Looks promising.
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)
What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)

rjaypeters
Posts: 868
Joined: Fri Aug 20, 2010 2:04 pm
Location: Summerville SC, USA

Re: Carbyne from first principles

Postby rjaypeters » Sun Apr 17, 2016 10:11 am

Ultra-Long, One-Dimensional Carbon Chains are Synthesized for the First Time

"Researchers involved in an international study, in which the UPV/EHU-University of the Basque Country has participated, have stabilised chains of more than 6,400 carbon atoms using double-walled nanotubes.

In a study, in which researchers in the UPV/EHU's Nano-Bio Spectroscopy Group led by Ángel Rubio have participated, a new route has been developed to produce carbyne (infinitely long carbon chains whose mechanical properties surpass those of diamond and graphene) by using double-walled carbon nanotubes to protect the carbon chain due to its extreme instability in ambient conditions. The results of the study have been published in the journal Nature Materials."

With a short description of confirmation techniques and a very short paragraph about applications.

Look here?

https://www.sciencedaily.com/releases/2 ... 084519.htm
"Aqaba! By Land!" T. E. Lawrence

R. Peters

rjaypeters
Posts: 868
Joined: Fri Aug 20, 2010 2:04 pm
Location: Summerville SC, USA

Re: Carbyne from first principles

Postby rjaypeters » Mon Apr 18, 2016 8:54 am

A more detailed article:

Strongest Material Carbyne Produced Inside Double Wall Carbon Nanotubes as Pathway to Bulk Production

http://nextbigfuture.com/2016/04/strong ... duced.html

with links to other material.
"Aqaba! By Land!" T. E. Lawrence

R. Peters


Return to “Design”

Who is online

Users browsing this forum: No registered users and 1 guest