Re: Dislocation creates 'whirlpool' that pulls surface atoms into crystal

From: Neutron (neutron_p_at_lycos.com)
Date: 06/13/04 

Date: 13 Jun 2004 23:01:46 GMT

spamspamspam3@netzero.com (Edward Green) wrote in message
news:<caf84k01ss9@enews2.newsguy.com>...
> neutron_p@lycos.com (Neutron) wrote in message
> news:<ca8jgu0ndj@enews1.newsguy.com>...
> > http://www.physorg.com/news160.html
> >
> > Developing novel ways to control the motion of atoms on surfaces is
> > essential for the future of nanotechnology. Now, researchers at the
> > University of Illinois at Urbana-Champaign have found a phenomenon of
> > dislocation-driven nucleation and growth that creates holes that
> > spiral into a surface and pull atoms into crystalline solids.
>
> An archtypical example of science reporting distortion:
>
> Any reasonable but naive observer would think they had "discovered"
> dislocations. A slightly less naive observer might think they had
> discovered prefered transport along disordered regions.
>
> > The newly discovered mechanism identified as a series of spiral
> > steps around dislocations terminating at the surface of titanium
> > nitride,
>
> Or perhaps they discovered screw dislocations. That _is_ news! :-|
>
> > a technologically important material used in microelectronics
> > and hard coatings could potentially be put to use in controlling

Who told they discovered dislocations? :-/

QUOTE
....found a phenomenon of dislocation-driven nucleation and growth ...

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