Jed stated:
http://home.netcom.com/~storms2/review4.html *Formation of **b**-PdD Containing High Deuterium * *Concentration Using Electrolysis of Heavy-Water* *This paper will present evidence for a different model based on almost complete hydrogen transport through the surface, diffusion within the bulk material, and eventual loss through a crack structure.* * * *A crack structure is produced within metals when they react with hydrogen. This structure is caused by increased brittleness and by physical expansion as the hydride is formed. * * * *The limiting composition of b-PdD obtained during electrolytic loading results from a complex competition between diffusion of D atoms through any surface barrier, diffusion within the bulk sample, and loss of deuterium gas from surface-penetrating cracks. Reductions in surface-crack concentration and surface-barriers are essential steps to achieve high compositions.* Axil replies: The irony here is that cracks are the causative factor in the reaction and not the limiting factor. The more cracks that are generated by loading, the better things get. The more that the palladium suffered from cracks, the better it performed in the LENR experiments. On Wed, May 15, 2013 at 8:07 PM, Jed Rothwell <[email protected]> wrote: > I wrote: > > >> When a cathode fails in a properly equipped lab, they always know why it >> failed. They can spot the defect. >> > > Knowing why and how something fails does not mean you know how to prevent > the failure. Rockets often explode. The telemetry usually tell > investigators why it exploded. They try to fix that problem but they do not > always succeed, and there are an unknown number of undiscovered problems > left over. > > Rockets are very complicated systems, which operate at the extreme limits > of temperature and pressure. A Pd metal lattice undergoing electrolysis is > also an immensely complicated system, and it is operating at far higher > pressures than any rocket or other mechanical system, albeit in a > microscopic domain. It would not surprise me if it takes as much money and > effort to tame the metal lattice as it took to make rockets reliable enough > for commercial applications and ICBMs. A cold fusion cathode is small and > featureless but that has no bearing on how complicated it is. It may turn > out to be more complex than a silicon CPU chip. > > - Jed > >
