they dropped the powder in through a hole and then sealed it with alumina refractory glue around a metal thermocouple (why are its readings not reported???). Apart from the fact that the 'glue' would have residual porosity that would probably help vent all hydrogen at high temp that is pretty strong indicator that there is no refractory metal shell in there to prevent leakage if that is a big deal.
A metal shell would tend to shield any pulsed magnetic field that Rossi claims is critical to operation. Also a metal shell would need to be insulated to prevent shorting of the resistor wires, and all of that would make the inner vessel even hotter - which seems pretty undesirable. An observer there for the opening reported no such refractory shell (though might be under NDA). And lastly refractory metals are heavy. A quick check of density of alumina and exterior size of reactor all weighing under Fig1 452g with resistance wire inside is a strong indication of no such additional components being inside. On 13 October 2014 00:36, Eric Walker <eric.wal...@gmail.com> wrote: > On Sun, Oct 12, 2014 at 2:39 AM, Robert Lynn < > robert.gulliver.l...@gmail.com> wrote: > > >> This reactor is mostly nickel droplets in lithium gas (the hydrogen will >> all diffuse away through porous sintered alumina rapidly at such high >> temperatures, but perhaps is useful to create reducing conditions >> initially). >> > > The report tells us the group saw sintered alumna. We do not know what is > used on the inside of the device. My guess: not sintered alumina, for this > reason. Here is another possibility: > > http://www.azom.com/article.aspx?ArticleID=3560 > > Note that the form of alumina in this case is "a nearly perfect oxygen and > hydrogen barrier". I do not know what its tensile, thermodynamic and > chemical properties are, except that it is probably refractory. > > Eric > >
