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Nerd Playing With His New Toy


glazenerd

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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

Crystal Edge

 
 
Same crystal at 800 x
 

Crystal Edge 800X

 
 
COE expansion issues up close 300x
 

Check Graing

 
Clay (white) and glaze (blue) interface.  Notice the clay is pulled up into the glaze in places--bonding.
 

Clayglaze interface

 
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.

 

 

 

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Guest JBaymore

Nerd........

 

Thanks for the dust.  :lol:  

 

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

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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.

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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. 

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Last one for John:

 

You recall Ron Roy talking about a crystal he had never seen before out in KC?  

 

In color

Refractive Test

 
Now magnified in B & W to show the crystal threading.. Crystals do not normally pack this tightly. 
 

Baby Blue

 
They normally thread like this
 

Crystal Edge

 
Nerd

 

 

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Guest JBaymore

 

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

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Guest JBaymore

 

 

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.  :D  :D:D  

 

"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

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