glazenerd Posted September 13, 2016 Report Share Posted September 13, 2016 John (moderator) the first image is for you. The amount of silica dust that fell on my laptop since I opened it to take these pictures. Yes, I sorta stirred it up on purpose. The "big" white dots I can see, the others I cannot. It is what you cannot see that gets you. The edge of zinc crystal at 200 x Same crystal at 800 x COE expansion issues up close 300x Clay (white) and glaze (blue) interface. Notice the clay is pulled up into the glaze in places--bonding. I can add arrows, measurements, and other fun stuff... How clear are they on your end? Nerd John, feel free to pull this thread down in a week or so, only checking to see how others view it. Link to comment Share on other sites More sharing options...
neilestrick Posted September 13, 2016 Report Share Posted September 13, 2016 Laptop: <cough> <cough> Link to comment Share on other sites More sharing options...
Fred Sweet Posted September 13, 2016 Report Share Posted September 13, 2016 Nice and clear, Nerd! Keep 'em coming..... Link to comment Share on other sites More sharing options...
Guest JBaymore Posted September 13, 2016 Report Share Posted September 13, 2016 Nerd........ Thanks for the dust. No reason to kill this thread... plenty of room on the server. Did you "mill" the slice of the edgewise clay/glaze interface sample? I've had a digital microscope camera for a long while. They are very revealing. And a lot of fun. Enjoy. I want to get a much better one..... but have not yet justified the costs. Maybe some day. (What I really want is a scanning electron microscope..... dream on .) There is some blurring on the images. Depth odf field issues as the image spreads away from the center points. Focus issues, I think. But still good info for folks. best, ...............john Link to comment Share on other sites More sharing options...
glazenerd Posted September 13, 2016 Author Report Share Posted September 13, 2016 Try another one: 600 x of clay/glaze interface>> with filters reset. The clay body is mature: very glassy. Nerd John: I have no lab budget, so no specimen slicer. Just a shot of a piece I broke open awhile back. Image better? Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted September 13, 2016 Report Share Posted September 13, 2016 Last photo is the best. Hard to light very small shiny things and take pictures. I was looking for a different video but stumbled across this one. Small and melty. Link to comment Share on other sites More sharing options...
Joseph Fireborn Posted September 13, 2016 Report Share Posted September 13, 2016 Awesome pictures. The last picture is cool, as well as the super magnified crystal. Link to comment Share on other sites More sharing options...
Min Posted September 13, 2016 Report Share Posted September 13, 2016 What is the working definition of a "mature" clay body? Link to comment Share on other sites More sharing options...
glazenerd Posted September 13, 2016 Author Report Share Posted September 13, 2016 Vitrification is the progressive partial fusion of a clay, or of a body, as a result of a firing process. As vitrification proceeds the proportion of glassy bond increases and the apparent porosity of the fired product becomes progressively lower Working application? It does not absorb fluid, which in turn means it is not going to shiver off glass down the road. Nerd Min: look at the immature clay pic and compare it to the blue/white interface pic above. You do not see any voids, not splotches, no light and dark areas: all signs something is not cooked right. The blue/clay pic is uniform, and very glassy. It looks like Fenton milk glass. Clay does not require to have that look to be mature: just needs to not absorb water. Link to comment Share on other sites More sharing options...
Joseph Fireborn Posted September 13, 2016 Report Share Posted September 13, 2016 One that doesn't throw a hissy fit? And pout when you dont glaze it right? Link to comment Share on other sites More sharing options...
Dick White Posted September 14, 2016 Report Share Posted September 14, 2016 Awesome, simply awesome. I wish I had a toy like this and could take some pictures to show a few high-poohbahs-of-the-studio why their belief in cone 6-10 clay is misplaced. dw Link to comment Share on other sites More sharing options...
glazenerd Posted September 14, 2016 Author Report Share Posted September 14, 2016 Dick: Patience sir!! I will be updating the porcelain threads with glossy photos and data about cone maturity shortly... Send em a link Nerd Link to comment Share on other sites More sharing options...
Min Posted September 14, 2016 Report Share Posted September 14, 2016 So by that definition most stoneware and lowfire / earthenware would be precluded from ever being called mature? hmmm..... sorry if I'm sounding nit picky but I'm just trying to get the difference between vitrified and mature clear. Link to comment Share on other sites More sharing options...
glazenerd Posted September 14, 2016 Author Report Share Posted September 14, 2016 Last one for John: You recall Ron Roy talking about a crystal he had never seen before out in KC? In color Now magnified in B & W to show the crystal threading.. Crystals do not normally pack this tightly. They normally thread like this Nerd Link to comment Share on other sites More sharing options...
No Longer Member Posted September 14, 2016 Report Share Posted September 14, 2016 Nerd, you need to sell large giclees of those! Ya know, that new toy, some photoshop and custom printed color ceramic decals could make some CRAZY cool looking stuff! Link to comment Share on other sites More sharing options...
Pieter Mostert Posted September 20, 2016 Report Share Posted September 20, 2016 Nerd, I think you'll enjoy this blog post. Link to comment Share on other sites More sharing options...
Guest JBaymore Posted September 22, 2016 Report Share Posted September 22, 2016 Last one for John: You recall Ron Roy talking about a crystal he had never seen before out in KC? In color Now magnified in B & W to show the crystal threading.. Crystals do not normally pack this tightly. They normally thread like this Nerd Yeah, Ron and I were talking about it a bit. One word...................... WOW! best, .......................john Link to comment Share on other sites More sharing options...
Guest JBaymore Posted September 22, 2016 Report Share Posted September 22, 2016 Ya know, that new toy, some photoshop and custom printed color ceramic decals could make some CRAZY cool looking stuff! Like fake wood laminate on particle board....... stick on macro-crystalline overglaze decals. "Tired of playing around with complex cooling cycles? Just use our new KrystalTex decals, and you can eliminate all that fussing around." best, ........................john best, .....................john Link to comment Share on other sites More sharing options...
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