|
Post by jfox on Jul 18, 2015 13:26:54 GMT -6
|
|
|
Post by tileman2 on Jul 18, 2015 13:42:13 GMT -6
Jim;
Correct, I did like it. I told you there were fermi's running around. Glad someone found them.
Tom
|
|
|
Post by tileman2 on Jul 24, 2015 21:37:18 GMT -6
Jim:
Firing a side by side ZNO challenge: Cerox 506 vs. Maximo 910. Certainly like the way Maximo 910 blends and applies better than I do 506. Let us see which produces better crystals in the same firing cycle and glaze recipe. Besides, as long as my supplier and my wholesaler want to give me free samples: I am in. My favorite cone 6 is still however 500XL; works great with Mason stains, and other cone 6 glazes.
Tom
|
|
|
Post by jfox on Jul 25, 2015 11:39:21 GMT -6
how about trying some 417w i can still get it for 2.13
|
|
|
Post by tileman2 on Jul 25, 2015 14:23:39 GMT -6
Jim:
Fret not, my penny pinching friend: Maximo 910 is $ 2.17 per lb. Surely I can get you to cough up a couple of nickels when the stunning beauty of 910 is revealed for all the world to admire. Okay, so I have not opened the kiln yet: just optimism. The 325 mesh is handy, and it is not a French process zinc: just finely ground. If they would have sent me an English version of the MSDS, instead of Spanish: might be able to tell you alot more. El zinco in de kilno. Only Spanish I know besides burrito and taco.
Tom
|
|
|
Post by tileman2 on Jul 25, 2015 21:00:57 GMT -6
Jim: Zinc Nacional Maximo 910 result: not bad for 3.25 hrs of soak. Slightly overpopulated for my taste: but good crystal development overall. Forgot to measure it, but around 3" roughly. 2280F with 2% lithium. Cerox likes a little more heat than that. I like the pseudo ring between the first and second holds. I get the same thing as it cools from the second hold. Imsil A-25 silica. Well.. maybe after another 100 attempts, I might get a photo: back to the manual.
Tom
|
|
|
Post by jfox on Jul 26, 2015 8:43:42 GMT -6
Good work! but once again I have to correct your terminology, its Parsimonious,Penurious, or just "tighter than a rats a$$" Im going hang gliding today,video to follow (i hope)
|
|
|
Post by tileman2 on Jul 26, 2015 18:57:25 GMT -6
Let me try to wrap my head around this: you intentionally run down a hill, to jump off a cliff. Then rely on woven canvas covering a lightweight tubular frame to keep you aloft. Let me go through my dictionary of terms and see what I can come up.
With that I will pose a question: why does the mineral version of calcium act as a more effective flux than the chemical version? In addition, in mineral form it is considered a metal. Lithium is likewise a metal, but cannot be stored for use except for specific conditions. The chemical version is not considered a mineral or metal: why? Yet, the atomic weight is identical from what I have studied. Under Paulings theory: the denser ( higher) the atomic weight: the more resistant it is to be broken down. Am not able to grasp why the same atomic weight would be assigned to a mineral and a chemical. What I am missing?
Tom
|
|
|
Post by jfox on Jul 27, 2015 8:33:47 GMT -6
hangliding was not committed, spent the day hang waiting on the top of MT Hull with a cold catabatic wind blowing down on our backs followed by breaking down in the middle of nowhere and taking half the night to get towed home. not sure what you are talking about (not the first time)are you comparing whiting or lime to calcium oxide.are you talking about oxides or metals minerals are chemicals, elements are chemicals ,compounds are chemicals.mineral just means a raw and natural form. how about some specifics
|
|
|
Post by Koz on Jul 27, 2015 8:34:39 GMT -6
TiO2,
I think it's questions like that that make Jim run down hills to jump off of cliffs.
Not that there's anything wrong with either the question or jumping off of cliffs, of course.
Koz
|
|
|
Post by jfox on Jul 27, 2015 10:07:56 GMT -6
I think we need a hang gliding video to christen the new forum heres me crashing my hang glider last year
|
|
|
Post by tileman2 on Jul 27, 2015 16:59:03 GMT -6
I noticed from 3:00 to about 3:40 you got comfortable; resting your arms on the bar instead of holding it. I assume your camera gave the horizon the curvature I was seeing. Going to guess you are 1/2- 3/4 mile above the Terra Firma?
Specifics: Why does Fluorspar, a halide mineral comprised of nearly 96% calcium act more vigorously that calcium carbonate (whiting): a chemical? I ran a test a couple of months back: 2% whiting, 2% fluorspar, and 2% lithium at 2230F. The fluorspar and lithium had complete melts with good crystal development: the whiting did not fair very well. Yet both forms of calcium are assigned the same molecular weights: but as stated one is classified a mineral, the other a chemical. The upon further study: I see naturally occurring calcium in some forms defined as a metal. Obviously we use a chemically produced version of lithium; but lithium in reality is a metal that can only be stored under liquids. Point being, the naturally occurring calcium fluorspar had the same fluxing ability as lithium: which I found most interesting.
Koz: cannot help myself. Took my dads transistor radio apart at age 5: got my arse spanked. Took the tubes out of the B&W TV at 7, got my arse spanked. Mixed some of the solvents on dads work bench at 10: and really got my arse spanked over that one: thinking it was the fumes that filled the house. Had this natural curiosity over what makes things work since a kid: still do six decades later. I read the usual literature associated with crystalline glaze and read comments like: "zinc has an affinity for silica." WELL shut my mouth for that fountain of useless information: tell me in specific terms why. If I am still able in 20 more years, I will still be asking why and how it works. Comments like lithium is the best flux just don't do it for me: what are the properties that make it a good flux? I now know why zinc has an affinity for silica: one down and 200 more to go. So Jim has two choices: answer and ignore.
TiO2
|
|
|
Post by jfox on Jul 27, 2015 17:56:35 GMT -6
I think the fluorine gets in there, the mineral chemical thing is arbitrary and irrelevent calcium metal is almost never found in nature cause it like lithium are to reactive , they talk about mineral salts as metals just in the potential sense in chemistry your talking metals in the electronic sense en.wikipedia.org/wiki/Metallic_bondingen.wikipedia.org/wiki/Metalmy only answer to you ultimate question is "Its all Magic"
|
|
|
Post by tileman2 on Jul 27, 2015 18:36:11 GMT -6
Jim:
"Is all Magic" is the sales line I use when I am about to charge someone double for the product. Metallic bonding however works for me.
"Metallic bonding occurs as a result of electromagnetism and describes the electrostatic attractive force that occurs between conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions. It may be described as the sharing of free electrons among a lattice of positively charged ions (cations)."
Silica would be the "delocalized electrons" or as Peter Islley wrote: " the lattice must be broken down." Zinc would be the "positively charged metal ion" that attracts the "delocalized electrons" of silica. Much better explanation than: " zinc has an affinity for silica."
Ty.. I figured you had a link to somewhere.
Tom
|
|
|
Post by jfox on Jul 28, 2015 8:41:48 GMT -6
affinity or aversion. attraction or repulsion. positive or negative.the balance of forces drive the natural world on all levels from the subatomic to the complex interaction of biological creatures such as ourselves. as a young person i thought i could study the world and it would open up and reveal its secrets, and to some extent it does but what i misunderstood was the frustration that arises from a finite mind interacting with an infinite universe. as far as the willimite bonding scheme you seem to ignore the oxygen which is the most electronegitve element involved so that seems to imply a partially ionic partially covalent system according to this www.chem.wisc.edu/deptfiles/genchem/sstutorial/Text7/Tx71/tx71.html
|
|