One detail is how does the e-cat work when in after-death mode (SSM). One mystery for me is the powder not to melt, hotter and the around...
I feel E-cat are very well engineered... we can be surpised like physicists were by felischman&pons calorimeter... 2014-10-15 18:24 GMT+02:00 Bob Higgins <[email protected]>: > I just suggested the following as the construction of the latest hotCat to > MFMP: > > Here is a section drawing of the end of the new hotCat as I see it ( > https://drive.google.com/file/d/0B5Pc25a4cOM2WXBNRjE2bDVVT1U/view?usp=sharing > ). I believe IH would have used as many off-the-shelf components as > possible. I think the outer 2cm tube is a custom cast tube that used a > 3/4" threaded rod as the OD and something like a 5/8" rod as the interior > for the cast. For replications, a standard Coorstek tube without the > ridges could be used to start - they probably did this themselves before > going to the custom cast tube. So, here is the Coorstek catalog of their > standard cast and extruded tubes ( > http://www.coorstek.com/resource-library/library/8510-1031_tubes_rods.pdf > ). The fillers may be high alumina fillers like those from Vitcast: > http://www.vitcas.com/insulating-castable ; > I believe the large tubes on the end to be thermally insulating supports > for the hot central 2 cm tube. Referencing the 4mm bore called out in the > report, it means that the core tube for the hotCat is 4mm ID. This will > not open to a bigger tube - they are not made that way - it is 4mm uniform > all the way through. I believe the central tube is a 4mm ID cast tube with > a closed end (probably the rounded one). > I will go out on a limb and say that I believe the inside of this tube is > probably sealed with an alpha alumina coating ( > http://www.azom.com/article.aspx?ArticleID=3560 ) and fired. Then they > probably created a Ni-Fe2O3 powder slurry with an organic binder such as > PVA and coated the inside of this central tube with the powder. Then they > fired this at about 800C with the tube open to burn out the PVA binder and > sinter the Ni to the alumina tube inner wall. > The heater coils are wrapped around the OD of the center tube, with the > wires leads insulated with alumina beads, and the wires are cemented to > this tube with something like MTI's high alumina adhesive ( > http://www.mtixtl.com/1650c3000fhi-purityaluminaadhesiveforbondingandrepairinghightemperaturefurnace… > <http://www.mtixtl.com/1650c3000fhi-purityaluminaadhesiveforbondingandrepairinghightemperaturefurnacequart.aspx%C2%A0>;). > > This center tube assembly is probably then fired in an oven to cure the > glue which should completely coat the wire. Then I believe this tube > assembly is coated with something like the Vitcast 1400 INS-H and pushed > into the outer long tube and the assembly is fired again in an oven. > Then the ends are sort of cast on by placing the large alumina rings over > the tube ends and filling with something like the Vitcast 1200 INS as an > insulating support. > I think the plug for the center tube is made from a 1 cm piece of Coorstek > 0.156" OD tube that has a 0.94" ID which is used to cement in a sheathed > thermocouple. You would have to be very careful to pick a thermocouple > type that is appropriate for up to 1500C. The thermocouple sheath is > cemented into the plug with something like the MTI adhesive. > > If you go through the thought experiment of constructing a hotCat of your > own, it will give you some insight into what the IH team may have done. > > Here are some of my other thoughts: > > - I believe the coils are 3-phase to create a moving magnetic field to > circulate an interior plasma when it emerges. > > > - I believe the active powder is sintered onto the inside of the > central tube - almost like a catalytic converter. > > > - I think what Rossi added in the beginning is primarily hydride - > maybe some Ni powder was added for obfuscation. You can't take this for > "starting material" for comparison to an ash (which they didn't get > either). It is probably just a consumable + obfuscation. > > > - I think what came out at the end of the experiment (thought to be > ash) was some left over loose slag and debris - it is not representative of > the active material which is sintered to the inside of the central tube. > This debris cannot be used as representative of active powder ash because > the real active powder is still inside the central tube. > > > - The heater wires and the termination wires are probably different > materials and the actual heater wire coils are fully encapsulated with a > high alumina cement. Maybe the ends are terminated in inconel for > interconnection. > > Bob Higgins > >
