In a facebook post, MFMP present their recent ideas, to use SiC heating elements. They give references to commercial documents. These heating elements are made to work up to 1500C, show huge negative temperature coefficient especially when doped as it is a semiconductor, works typically with pure alumina refractory materials, resist to hydrogen and oxygen athmosphere...
[news=31,meta][/news]
Guliano Bettini on Facebook LENr group report this finding on Cobra F
http://www.cobraf.com/forum/immagini/R_123571969_1.pdf
resistivity from 450 to 1400C is divided by nearly 4x.
I think they found it!
Quote from Andrea.s on cobrafDisplay MoreNon vi si può lasciare soli un attimo, che arriva la bomba.
Rossi ha trattenuto il fiato per qualche ora, adesso ha rilasciato i commenti del giorno ma senza cenno a Prometeon, anzi canta le lodi dell'impianto da 1 MW
"I think our team ( electronic engineers, physicists, blue collars, white collars has made a masterpiece"
@ Nevanlinna
lei mi invitava a fare altri conti sui resistori, scusi ma sono stato impegnato.
però mi ha aiutato un amico più addentro al settore: forse cercava questo ?
Pare che facciano il ponte per Thanksgiving. Il mio amico dice che costano sui $600, si potrebbe fare una colletta ma purtroppo la MOQ è esagerata (100pcs).
Too bad the author claims this page is a fake...
http://www.cobraf.com/forum/immagini/R_123571969_1.pdf
he replaced the file itself
one good argument is that no company does have a gmail.com address...
E-cat world have contacted the telephone and e-mail but only answer was from e-mail...
it is well made.
Quote from Bob GreenyerDisplay MoreI am very happy to report that we knew enough to see that this was obviously a fake from the outset and said as much when it was posted to our Facebook page yesterday.
I didn't even bother sending an email or phoning them yesterday - because when you understand the industry this was rubbish.
What helped us was that we had already been told by SiCarb India that such a product was impractical to make.
However, we must sincerely thank the authors however, because their, quite obvious joke, led to the discovery of a very real patent supporting a request that we had already made to SiCarb to make a 3 Phase element in a Y (star) configuration. This could be very practical for wide scale material screening.
https://www.google.com/patents/US3859501
Which was discovered by Anon 2012_2014.
So A REALLY BIG thanks to him and the authors of what we called the "Spoof".
the good point is that we got fooled for less than 24h hours, while some are fooled by APS myth for more than 24years...
that is the difference between being optimistic, trusting claims but verifying later, with capacity to change position quickly facing evidences...
And believing in consensus despite evidences.
searching more oin SiC I found that documentation about how to control SiC heating elements with SCR (DC version of triac)
http://www.eurotherm.com.au/en…ting-elements-using-scrs/
and this one
http://www.practicalcontrol.co…icon_carbide_control.html
beside SiC here is a review article on possible heating elements material
http://furnaces.911bob.com/electric_resistance.htm
Interesting one may be Cermet...
but an interesting one that seems simple is Iron-Chrome-Aluminum: :
QuoteIn the 1930’s the second group, the Iron-Chrome Aluminum alloys, was developed in Europe. This group when heated produces an Aluminum Oxide (Alumina). As the Alumina is more stable it can operate up to 1450ºC (2550ºF).
