Above are 2 pixs of a recently finished (greenware) bent-backed pitcher. Had a lot of fun designing the handle. Then as it was drying, realized that if the handle survives the bisque fire, there's going to be a heck of a challenge glazing it !!!
Have been studying glazes. Glazes. More Glazes.
Going thru my records and checking them off. Yep! Tried that combination - didn't work out as orange. Nope! That one won't work for turquoise.
There's quite a list of cobalt and/or copper recipes which didn't produce turquoise.
Quite a few of titantium, antimony, rutile, etc. which didn't produce orange.
Before more chem dust was created, i thought i'd hit the books for a while and see if there was a solution that had been overlooked.
In my research yesterday, came across crystals again. Have been intrigued with them for a long time and Robin Hopper's "The Ceramic Spectrum" piqued my interest to the point where i thought i just had to try it now!
So!
Today fired a piece with a "crystal base" including a lot of titanium. It's a lead frit base with Frit 3110 added and 10% feldspar.
Was that worried about working with the lead frit that i wore a big ole respirator mask and rubber gloves. Unfortunately, the respirator not only blocked the dust, it blocked logic as well. And the rubber gloves messed around with the calculator in an adverse way causing it to tell me that one fourth of 10 was 0.25.
Normally, i would-a caught that error. But the respirator interfered. Blocks rational thought, you know.
After applying the glaze and putting the pot in the kiln, went into the pottery room to see if there was additional info in "The Potter's Dictionary" by Hamer.
Sure enough there was.
A key element in his info was that for those beautiful large crystals, double axe-heads, a lot of zinc is needed.
By that time, i'd realized my error in computing the Custer and after reading Hamer thought i could kill 2 birds with one stone, so to speak.
Retrieved the pot from the kiln, and added an overglaze with a lot of zinc and 2.5% Custer feldspar.
Do i have high hopes and great expectations for a magical outcome?
Ahhhh ...........
Not exactly.
But maybe the results will be interesting? We'll have to wait til 1pm or so tomorrow to see.
One of those serendipitous coincidences happened today ...... kind-a makes one scratch their head and wonder at the kiln fairies.
My kiln which has been giving me great difficulties on simple programming (and no i haven't yet mentioned it to the retailer nor the manufacturer) xx today, went thru a complicated and convoluted program - without a hitch!
Not even a hiccup.
Nor a burp!
Just muddled right thru the whole process without batting a thermocoupler.
I, on the other hand, was a nervous wreck.
Happy crystal days
Chae