Bob--
Thanks for that clarification about the melting of small Ni particles. Are
there any compounds or alloys of Ni that would not melt or sinter below say
1100 C? Since Rossi says he does not use Ni nano particles the fuel may be
something else containing Ni that could be exposed to the Li at 1000 C in some
reliable configuration.
For example the following abstract suggests some possible substrates that would
hold the Ni at temperature.
Composite nano particles of Ni-TiC and Ni-TiN were prepared by an active
plasma-metal reaction method. The structure and morphology were evaluated by
X-ray diffraction and transmission electron microscopy observations. The
morphology of the composite particles is dice-like or dumbbell-like, where the
outer sides are metallic and the inner part of the rod (or dice)-like structure
is TiC or TiN. The formation mechanism of the composite particles is considered
by analogy to the VSL mechanism. The thermal stability of the nanocomposite
particles is vastly superior to that of the metal particle. The excellent
catalytic property of the Ni-TiN composite particle was confirmed when compared
to the well-known Raney Ni particle and mixed particles of Ni and TiC.
Note the increased thermal stability.
Bob
--- Original Message -----
From: Bob Higgins
To: vortex-l@eskimo.com
Sent: Saturday, October 18, 2014 10:13 AM
Subject: Re: [Vo]: Gettering in the Lugano IH reactor
As someone who has first hand experience working with micro-scale carbonyl Ni
powder, and treating these powders in a thermochemical reactor, I can tell you
that what you are saying about the nickel particles is 100% wrong. Even these
4-10 micron scale nickel particles will sinter into a porous mass by heating at
500-700C. Ni melts at 1455C and the nano-scale features will all melt at about
half of this temperature - the nanoscale features will ball-up onto the
micro-scale nickel particle to which the feature may be attached. Any
nanopowder of Ni present is melted before 800C and becomes a larger particle -
and then condenses. And Rossi specifically says he does not use nickel
nanopowder anyway. The same is true for other free nanoparticles. By the time
the IH reactor is operating above 1000C, there are no nickel nanoparticles or
nano-features of any kind left - they are all melted into larger agglomerations.
I don't know what your experience is with, but it is not with nickel powder.
Alumina does not store hydrogen in any significant measure.
On Sat, Oct 18, 2014 at 10:57 AM, Bob Cook <frobertc...@hotmail.com> wrote:
Eric
The Li may still be in a vapor form and the Ni in a nano size solid state
form, both nano particles and Li atoms circulating as a hot mixed substance in
the reactor. The Li reacts one atom at a time with the Ni lattice to form new
species. The temperature is practically uniform because the nano particles
quickly take on the temperature of the Li vapor or individual atoms. As has
been suggested the Li evaporates from the alumina to feed the reactor and
provide the necessary nuclear reactant with the Ni isotopes--with the exception
of Ni-62 which does not react.
I suggest that the Ni is in a particulate configuration since I do not
believe the temperatures are sufficient to cause vaporization or degradation of
the Ni nano particles. H may also circulate, but is of no consequence--or
maybe it is if the alumina is really a hydrate to begin with by design.
Bob Cook
----- Original Message -----
From: Eric Walker
To: vortex-l@eskimo.com
Sent: Saturday, October 18, 2014 8:23 AM
Subject: Re: [Vo]: Gettering in the Lugano IH reactor
On Sat, Oct 18, 2014 at 7:45 AM, Bob Higgins <rj.bob.higg...@gmail.com>
wrote:
Once the Li is a thin alloy film on the Ni particle surfaces which are
catalyzed to produce a LENR reaction, the Li may then be a participant in the
LENR in condensed matter form as opposed to being a participant in vapor phase
form.
I think you've hit upon an important question that has come up recently
-- is a condensed matter phase needed in some form to get LENR to work? If
not, there will have been a lot of theorizing over the years for naught. My
working assumption now is that there is no such need, and LENR will work in
pure gas phase systems as well, although I do think that an explanation should
also account for LENR working in a solid state system.
Eric
