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Phil Hamling 376 County Route 1 Warwick, NY, USA 10990 e-mail: pdah-at-optonline.net (change the -at- to @) |
Zinc Silicate Crystalline Glaze Pottery A chronicle of my recent progress and a way for me to keep it straight in my head! Click on thumbnails to enlarge photos |
Info I've been asked to keep in confidence.
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2-7-10 I started firing a trio of kilns last night. I was up way too late glazing the winged thingy and was having heart palpitations as my thoughts alternated between "Don't screw this up" and "It's just clay".
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I was mesmerized by this view last night. |
Doll (The poor baby has acne now). |
e23s | |
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| Fallonator | |||
2-5-10 ARRRRRGH!!!!! I re-glazed and fired this ornament the other day (probably for the fourth time, ) after soaking it for about a week in a witches brew of organic goop (oil, sugar, etc). What a mistake!!!! Apparently it sprayed glaze particles all over the inside of the Doll on the way up which melted into the kiln lining. I was able to pick some of it out of the brick but had to flip the floor over. I will never do that again.
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I guess I forgot to photograph it! |
| Before | After | Before | After |
2-1-10
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These crystals were grown using this schedule, except for a longer sloping hold during segment 6 (5C/hr). I'm having a hard time figuring out exactly which segments are responsible for the center. |
1-31-10
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1-29-10 We put the finishing touches on a 50 cu. ft., 3000°F alumina fiber insulated, molybdenum disilicide heated furnace lining for firing tin - indium materials used in touch screen applications. This puppy has a composite roof system and finger jointed walls we cut on one of the CNC routers. I have to admit that the first time through these bits scared the hell out of me.
1-27-10
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1-25-10
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1-23-10
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1-22-10 I changed last night's firing schedule to try and get larger crystals with a wider white outline on the next one of Jamie's pieces. There are more blues as well as the number which gave gold crystals in these firings.
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Maybe someday I can hope to throw like him but for now I'm just happy I've stepped in poop and have these beauties to play with.
1-21-10 This is the first piece thrown at the Symposium that I've fired. I still have quite a few other pieces "in line" before this one but couldn't wait to see what these new glazes look like on one of The Wizards little cuties!
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1-18-10 Good luck tomorrow Terry!
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1-17-10 Terry hooked me up with Omega's TC Central software, remote receiver and transmitters. With them I can watch all my kilns firing at the same time.
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![]() Kiln activity through the eyes of TC Central and Excel |
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Another gorgeous form by David Turner all dressed up for the prom! |
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In the first Fallonator PFR I was trying to get a very light reduction. I set the reduction controller to 820 and should have gotten about 10 minutes worth. Part way into it I realized the bottle was empty and made a quick change. It only saw a few minutes in reduction which did nothing to the pieces.
In the second PFR I raised the reduction setting to 845mv and temperature plus added a hold. The only problem was part way through it I realized I hadn't turned the reduction unit on, but was able to recover quickly.
1-15-10
Smack Down Results:
Alumina
Hydrate beat EPK hands down in my book. The cleanup is amazing. Pop the
catcher and clean off the dust with a sponge. I could never figure out how
someone would be happy using a bench grinder at the end to clean up the
edges but now I see that all you need to do is bevel the edge where the
glaze cracked and sponge off the bottom.
1-14-10
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1-12-10
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Comments I've received include:
Wouuuuuuuuuuu ! Take a glass of the best whiskey you have, and enjoy the
moment!!!!! You can be proud about these beauties!……….Hey
Phil. Nice. Keep on havin fun!……….They
look awesome…………Wow! ………Looks like a good firing……..and…….Well
my my my.........I'd say that your definitely all grown up now, and are in
fact, one of the best.
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I was really pretty happy with how these firings turned out. Lots of variation, lots to see, and things (results) seemed to make sense. |
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| Fallonator | |||
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| Doll | e23s | ||
1-11-10 After ~ 20 hours all kilns were still cooling but cool enough to peek and see there will be some stuff to talk about.
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The Fallonator's actual temperature is being recorded by the laptop via wireless transmitter. It couldn't keep up the rate of 200°C (360°F) per hour above ~1050C (1922F) so the actual progress was delayed. I wonder why it shut off at the planned time though? Cowinkydink or is there something fishy goin' on? |
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| Actual Firing Curve | Planned vs. Actual |
1-10-10
1-5-10 Left: Two pieces by Diane Luedemann.
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1-4-10
1-2-10
It looks like the pieces with glaze containing 5% Ag2CO3 fumed the others and impacted the ones with glaze containing 2% CuCO3 + .5% CoCO3 and no titania. They should have lit up copper red but instead seemed to have done otherwise. I think I should have checked William's "Silver Nitrate Manifesto" before reducing this load.
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It seems like I got a decent reduction based on the color of the element supports and the pieces containing rutile (purple...and red).
1-1-10
It looks like the new year is starting with a BANG! New page! Newly tweaked look!
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![]() Setup for post fire reduction. |
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