Looks to be not LENR and not hydrogen related. Similar thing happened with no fuel.
http://www.lenr-coldfusion.com/wp-content/uploads/2015/03/IMG_20150319_082625_750.jpg On Tue, Mar 17, 2015 at 10:39 PM, <[email protected]> wrote: > I played with termite and stuff like that then I was young. > > I ignited termite with gunpowder and it melted steel. > > > > > > On Tue, 17 Mar 2015 21:08:17 -0500, Jack Cole <[email protected]> wrote: > > If it actually got hot enough to ignite the thermite, that might melt the > alumina. I was thinking Bob said some time ago that it takes temps > somewhere above 2000C to ignite thermite. I haven't done the calculations > for that yet. > > On Tue, Mar 17, 2015 at 8:16 PM, <[email protected]> wrote: > >> Aluminium powder and Fe2O3 may give lots of heat in short time a termite >> reaction. >> >> Have you any calculations about how much energy this reaction may release? >> >> >> >> >> >> On Tue, 17 Mar 2015 18:26:24 -0400, Axil Axil <[email protected]> wrote: >> >> Steady accumulation of energy followed by its rapid release can result >> in the delivery of a larger amount of instantaneous power over a shorter >> period of time (although the total energy is the same). Energy is typically >> stored within a circuit of the device. What happens is based on the circuit >> of the dimmer. >> >> By releasing the stored energy over a very short interval (a process that >> is called energy compression), a huge amount of peak power can be delivered >> to a load. For example, if one joule of energy is stored within a capacitor >> and then evenly released to a load over one second, the peak power >> delivered to the load would only be 1 watt. However, if all of the stored >> energy were released within one microsecond, the peak power would be one >> megawatt, a million times greater. >> >> If the current rise is fast enough, the wire does not have enough time to >> heat up, but the magnetic flux during the rise might be huge. >> >> On Tue, Mar 17, 2015 at 6:09 PM, David L. Babcock <[email protected]> >> wrote: >> >>> "Very sharp" -just means that the power is applied nearly >>> instantaneously. Not any more power, just whatever equals E2 /R. >>> However the temperature gradient would indeed be higher, so the wire would >>> expand sooner than the matrix around. If the matrix temperature rises and >>> falls a lot during a small part of a line cycle, stress might get pretty >>> high. But isn't the wire a near-zero expansion/temperature material? >>> >>> Ol' Bab -who was an engineer... >>> >>> >>> >>> On 3/17/2015 4:02 PM, Axil Axil wrote: >>> >>> In these triac light dimmers, the rise/fall times are very sharp maybe >>> in the nanoseconds. That means that a lot of instantaneous power is being >>> feed into the heater wire as the power pulse starts when the leading edge >>> waveform is used. >>> >>> On Tue, Mar 17, 2015 at 4:56 PM, Axil Axil <[email protected]> wrote: >>> >>>> According to Jack, the reaction did not happen in the fuel, but in the >>>> insolating layer. The fuel composition does not matter. IMHP, what matters >>>> is the exact nature of the heater current. >>>> >>>> On Tue, Mar 17, 2015 at 4:38 PM, Robert Ellefson <[email protected]> >>>> wrote: >>>> >>>>> Jack, >>>>> >>>>> >>>>> >>>>> Fantastic! I’m really stoked to hear of your progress. I think your >>>>> powder recipe sounds very interesting, and I would love to know more about >>>>> the details of the reactants. It sounds like you’ve come up with a >>>>> mixture >>>>> which may contain one or more key ingredients not yet identified as being >>>>> of primary significance to the high-gain modes of these systems. >>>>> >>>>> >>>>> >>>>> If I may fire away: >>>>> >>>>> What size Fe2O3 and TiH2 grains were present? >>>>> >>>>> Is this mixture generally not hygroscopic, and therefore is curing the >>>>> reactor’s sealant a simple matter as compared to LAH? >>>>> Are you tumbling or milling these reactants, or performing any other >>>>> notable processing steps, prior to putting them into the reactors? >>>>> >>>>> >>>>> >>>>> Thanks for sharing, and keep up the great work! >>>>> >>>>> >>>>> >>>>> -Bob >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> *From:* Jack Cole [mailto:[email protected]] >>>>> *Sent:* Tuesday, March 17, 2015 1:08 PM >>>>> *To:* [email protected] >>>>> >>>>> *Subject:* Re: [Vo]:melted alumina tube >>>>> >>>>> >>>>> >>>>> Bob, >>>>> >>>>> >>>>> >>>>> The input power was ~260W. I don't know what the R value of the >>>>> insulation is. I had the cell surrounded by high purity alumina powder >>>>> and >>>>> covered with a thin sheet of ceramic insulation. I used standard 120V AC >>>>> 60hz with a triac type dimmer switch (chops the waves starting at V=0). >>>>> I'll have to check with the manufacturer to see what the remaining 5% of >>>>> the tube is. The heating element was Kanthal A1. It's strange that the >>>>> heating element was able to completely melt at points. In the past, it >>>>> has >>>>> always failed before melting. >>>>> >>>>> >>>>> >>>>> I was using INCO type 255 nickel, TiH2, LiOh, KOH, aluminum powder, >>>>> and Fe2O3. Good idea on the small amount of fuel which should cause some >>>>> localized melting. >>>>> >>>>> >>>>> >>>>> The fact that the fuel was a small diameter cylinder seems to suggest >>>>> that it was fully expanded in the tube and shrunk down. >>>>> >>>>> >>>>> >>>>> Jack >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Tue, Mar 17, 2015 at 2:02 PM, Bob Cook <[email protected]> >>>>> wrote: >>>>> >>>>> Jack-- >>>>> >>>>> >>>>> >>>>> It looks like you had a pretty good reaction. >>>>> >>>>> >>>>> >>>>> What was the input power? What is the R value of the insulation on >>>>> the outside of the electric coils? What was the nature of the electrical >>>>> input--frequency etc? And what is the electrical heating element >>>>> material? If you have an acetylene torch, see if you can melt a piece of >>>>> the tube that melted. >>>>> >>>>> >>>>> >>>>> The tube may have had glass fibers incorporated in order to improve >>>>> strength. You indicated it was 95% pure. What was the other 5%? >>>>> >>>>> >>>>> >>>>> What was you fuel mixture? You may want to try a small fuel loading >>>>> and see if the same intense reaction happens--all else the same. >>>>> >>>>> >>>>> >>>>> Try the test with a iron core instead of a fuel load and determine if >>>>> there is an apparent magnetic field which would hold the iron core in >>>>> position when direct current is applied to the heating coil. An >>>>> alternating current would of course change the magnetic field and may >>>>> make for null reaction conditions. >>>>> >>>>> >>>>> >>>>> Try 2 or 3 t/c's if you can--one inside and two outside to get a >>>>> measure of the temperature gradient along the tube. Also another easy way >>>>> to determine temperatures is the use of thermal sticks on accessible >>>>> surfaces. Welders use these to determine preheating temperatures. They >>>>> may provide a cheap temperature measure for you. >>>>> >>>>> >>>>> >>>>> Keep it shielded--good luck. >>>>> >>>>> >>>>> >>>>> Bob >>>>> >>>>> ----- Original Message ----- >>>>> >>>>> *From:* Jack Cole <[email protected]> >>>>> >>>>> *To:* [email protected] >>>>> >>>>> *Sent:* Tuesday, March 17, 2015 9:39 AM >>>>> >>>>> *Subject:* Re: [Vo]:melted alumina tube >>>>> >>>>> >>>>> >>>>> To add a couple of more details. The agglomerated piece of material >>>>> is extremely hard. I tried to break it off with pliers, but it seemed >>>>> like >>>>> it would take more force than to break the entire cell. The resistance >>>>> wire is extremely difficult to separate from the cell. I plan to open the >>>>> cell with a diamond blade later today to see if more can be learned about >>>>> what took place (e.g., evidence of melting on the inside of tube). I was >>>>> able to get one piece of the resistance wire pried from the tube. There >>>>> were indentations in the cell. >>>>> >>>>> >>>>> >>>>> As a follow-up experiment, I need to run it without the fuel to the >>>>> same power levels to see if the same effects occur. >>>>> >>>>> >>>>> >>>>> On Tue, Mar 17, 2015 at 9:42 AM, Jack Cole <[email protected]> wrote: >>>>> >>>>> I had an interesting experiment yesterday. This was my first time >>>>> using a triac to regulate input power and sealing the tube with a >>>>> compression fitting. Unfortunately, my thermocouple failed. >>>>> >>>>> >>>>> >>>>> Take a look at the alumina tube and the evidence for melting. The >>>>> furnace sealant which I coated it with completely melted and agglomerated >>>>> to the bottom of the cell (also appears to be mixed with melted alumina). >>>>> >>>>> >>>>> >>>>> >>>>> http://www.lenr-coldfusion.com/wp-content/uploads/2015/03/IMG_20150317_084823_361.jpg >>>>> >>>>> >>>>> >>>>> The tube was purchased from China and is purportedly 95% pure. It was >>>>> supposed to have a continuous operating temperature of 1500C. >>>>> >>>>> >>>>> >>>>> Any opinions? >>>>> >>>>> >>>>> >>>>> Jack >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>> >>> >>> ------------------------------ >>> <http://www.avast.com/> >>> >>> This email has been checked for viruses by Avast antivirus software. >>> www.avast.com >>> >>
