I call this one, "Matt-on-Matte" 😄. Being a (macro) crystalline potter, I actually knew a lot of this, but Mr. Katz has a way of forcing your tired, old memory in so many different ways. I was surprised how much I forgot. WOW, what a great video production! You and Rose are killing it! (I'll still listen to the podcast though). Please keep up the great work you guys!
Great video! One question- I noticed on the white version of your true matte glaze (11:30 ish) there is crazing on all 3 different cones, but not on the blue one. Is that because the colorant prevents crazing? Thank you, love the channel and the podcast! I met yall at nceca last year and got you to sign my kiln log 😂
How does reduction affect crystallization and matte? I assume you’re specifically talking about oxidation firing in most of this video but I figured I’d ask to be sure. The reason why I ask is that I have a glaze I’ve been trying to nail down that looks nice and smooth with some reduction, will run with lots, and can be a bit dry with none. I also acknowledge I may be conflating reduction with temp based on exposure to flame but based on multiple cone packs around the kiln temp doesn’t seem to be the determining factor. Thanks for the video!
Reduction itself has zero effect on crystallization behavior. Why we often see variation in reduction firing, is because of the inherently slow cooling of reduction kilns because of their thick walls. Slow cooling in an electric kiln is an attempt to mimic the cooling of a reduction kiln. That said, as you mentioned, consistency in a reduction kiln is very hard to control. From a cooling and reduction perspective alone. the burner ports are a huge challenge, as they are just open holes to the atmosphere, which can undo the desired effects of the firing.
I call this one, "Matt-on-Matte" 😄. Being a (macro) crystalline potter, I actually knew a lot of this, but Mr. Katz has a way of forcing your tired, old memory in so many different ways. I was surprised how much I forgot. WOW, what a great video production! You and Rose are killing it! (I'll still listen to the podcast though). Please keep up the great work you guys!
Awwww, thanks!
Thanks for sharing 🤓
Great video! One question- I noticed on the white version of your true matte glaze (11:30 ish) there is crazing on all 3 different cones, but not on the blue one. Is that because the colorant prevents crazing? Thank you, love the channel and the podcast! I met yall at nceca last year and got you to sign my kiln log 😂
The blue ones are crazing, you just can't see it.
How does reduction affect crystallization and matte? I assume you’re specifically talking about oxidation firing in most of this video but I figured I’d ask to be sure. The reason why I ask is that I have a glaze I’ve been trying to nail down that looks nice and smooth with some reduction, will run with lots, and can be a bit dry with none. I also acknowledge I may be conflating reduction with temp based on exposure to flame but based on multiple cone packs around the kiln temp doesn’t seem to be the determining factor. Thanks for the video!
Reduction itself has zero effect on crystallization behavior. Why we often see variation in reduction firing, is because of the inherently slow cooling of reduction kilns because of their thick walls. Slow cooling in an electric kiln is an attempt to mimic the cooling of a reduction kiln.
That said, as you mentioned, consistency in a reduction kiln is very hard to control. From a cooling and reduction perspective alone. the burner ports are a huge challenge, as they are just open holes to the atmosphere, which can undo the desired effects of the firing.