Re: [Vo]:Status of Mizuno Pd-Ni replications
Jones Beene wrote: > However, one of the early images coming from the photos Mizuno sent out - > showed the metal piece which was used for the rubbing and it was not a new > rod but looked used pretty "gnarly", for lack of a better term. As if it > had been used for years. > > Given that Mizuno had undertaken a recent move of his lab due to > earthquake - there is a remote possibility that another palladium rod was > somehow substituted for the one which he thought was pure when in fact it > was Type A - the silver alloy. > We should find out about this from the mass spec analyses now underway.
Re: [Vo]:Status of Mizuno Pd-Ni replications
There is one potentially critical detail in the experiment which, although unlikely to have happened, can answer many questions. This detail can be easily eliminated from consideration - with an isotope analysis (of a working Mizuno rubbed mesh). >From the start, Mizuno said he used pure palladium. Apparently, every >replication attempt has likewise used pure palladium. However, one of the early images coming from the photos Mizuno sent out - showed the metal piece which was used for the rubbing and it was not a new rod but looked used pretty "gnarly", for lack of a better term. As if it had been used for years. Given that Mizuno had undertaken a recent move of his lab due to earthquake - there is a remote possibility that another palladium rod was somehow substituted for the one which he thought was pure when in fact it was Type A - the silver alloy. There are dozens of instances on this forum and elsewhere where the experts, including Jed, has made it absolutely clear that "only Type A palladium works in cold fusion" ... or something to that effect. See the thread cited below. Many problems would be solved if the palladium which worked was indeed Type A - which is a silver alloy, instead of pure palladium. That way all of the other null attempts were doomed from the start. Moreover, there has to be a good reason (not yet fully explained) why the experts in the past - including, including P - were fully convinced that *** only Type A palladium works*** Here is one of the old threads... https://www.mail-archive.com/vortex-l@eskimo.com/msg43155.html Jones Jed Rothwell wrote: > Has an isotope analysis of Mizuno's own original and successful mesh been > performed to determine the exact composition? Not yet. We sent samples to two different labs. We sent three samples to each lab: mesh as received; mesh prepared by Mizuno; mesh that produced excess heat. - Jed
Re: [Vo]:Status of Mizuno Pd-Ni replications
Axil Axil wrote: Sometimes, the LENR reaction can be active even if there is no excess heat > produced. The LENR reaction will sometimes produce transmutation without > the production of excess heat. > It cannot as far as I know. There are examples in the literature such as Iwamura where transmutations were detected but no attempt was made to measure excess heat. But I do not know of any examples in which calorimetry was performed, transmutations were found, but no excess heat was detected. In Iwamura's early experiments, he did use calorimetry and he did detect heat. If you count tritium production as a transmutation I guess there are examples of that. I suspect there was excess heat but it was too small to measure. > Has anybody checked for transmutation using a SEM after a failed test? > Samples have not been subjected to high resolution mass spectrometry yet.
Re: [Vo]:Status of Mizuno Pd-Ni replications
Jones Beene wrote: > Has an isotope analysis of Mizuno's own original and successful mesh been > performed to determine the exact composition? > Not yet. We sent samples to two different labs. We sent three samples to each lab: mesh as received; mesh prepared by Mizuno; mesh that produced excess heat. - Jed
Re: [Vo]:Status of Mizuno Pd-Ni replications
Sometimes, the LENR reaction can be active even if there is no excess heat produced. The LENR reaction will sometimes produce transmutation without the production of excess heat. Has anybody checked for transmutation using a SEM after a failed test? On Mon, Dec 2, 2019 at 11:42 AM Jones Beene wrote: > > > Jed Rothwell wrote: > > > > Several replications of the Pd-Ni experiment are underway, but they have > not been going well... He would like to remind people that some Pd is hard > and does not rub unto the Ni mesh. > > Has an isotope analysis of Mizuno's own original and successful mesh been > performed to determine the exact composition? > >
Re: [Vo]:Status of Mizuno Pd-Ni replications
Jed Rothwell wrote: > Several replications of the Pd-Ni experiment are underway, but they have not > been going well... He would like to remind people that some Pd is hard and > does not rub unto the Ni mesh. Has an isotope analysis of Mizuno's own original and successful mesh been performed to determine the exact composition?
Re: [Vo]:Status of Mizuno Pd-Ni replications
Test
[Vo]:Status of Mizuno Pd-Ni replications
Several replications of the Pd-Ni experiment are underway, but they have not been going well. Zhang reported small excess heat. It went away, came back, and now it has gone again. Others say it is not working. I asked Mizuno to comment on what the problems may be. Here is a summary (not an exact translation) of his comments and mine. His comments: His biggest concerns is that when he prepares the mesh and rubs Pd on to it, he then immediately puts it into the reactor, evacuates it, and begins the cycles of degassing, then heating and degassing, and D2 gas treatments. Little or no time elapses from the final stages of rubbing to putting it into the reactor. Whereas, when he prepares a mesh and then mails it, a lot of time elapses, which may allow contamination from air, or from the plastic packaging. In other words, the state of the mesh and Pd may change. He thinks it might be a good idea to send someone an entire reactor that has produced excess heat, with the mesh installed. He would like to remind people that some Pd is hard and does not rub unto the Ni mesh. You may need to anneal it to soften it. You have to confirm that it has coated on the Ni. There is a replication now underway in Japan which seems to be going well. We hope we can soon upload a description and some data from it. My comments: As far as I know, no one has the equipment to do an exact replication. Most of the cells are smaller. The methods of calorimetry are different, although I think they should all work, because they probably do not cool the reactor excessively. They allow a large temperature difference between the inside and the outside. I am not sure they are all sensitive enough, or that they will work if heat is not uniform, and is produced in hot spots in the mesh. Some are not envelope calorimeters. They measure the reactor temperature directly. I think the envelope method is better. The thing the people replicating most need are high resolution SEM and mass spectrometers. The SEM is used to determine how much Pd has coated on the Ni. The mass spectrometer is used to determine if the gas in the cell is free of contaminants after several repetitions of the pretreatment described in the paper on p. 17. Regarding his suggestion about sending an entire reactor, I have some safety concerns about doing this. I fear there is a slight possibility it will self-heat, which would be catastrophic if it were an air shipment. Perhaps it would be okay to drive it in a car to someone else in Hokkaido.
