This is part 1 of a short series showing how to use Glaze Software to discover things about glazes. This is an overview of the basic structure and some applications. This is the first video in this series.
Пікірлер: 74
@alisaliskinclausen24744 жыл бұрын
Too many sources is what I had before and some conflicting, so a degree of confusion. Now I have so many of the bits and pieces put together and I have so much more clarity. Great to be on the school bench again. I will be seeing this a few times and taking notes.Thank you, great teaching.
@Neldidellavittoria4 жыл бұрын
Thank you so much for taking the time to do this, Mr Britt. It is very helpful and I'll definitely watch it over and over and copy all that in my notebook. Looking forward to part 2!
@ReneeGlasgow Жыл бұрын
I am so excited to find you and your Glaze Class series! I cannot afford $600, so thank you so very much for offering such valuable information for free!
@johnbrittpottery Жыл бұрын
That is exactly why I am doing it! More to come. Please do exercises or it is just cerebral.
@AlienBrazil4 жыл бұрын
Tranks for the lecture. As a beginer that clarified lots of thinks on how the ceramics materials works, and now it can have more sense for me.
@user-qt3bh5hk4p9 ай бұрын
such great lesson, watching it over and over and it is getting more clear. You are awesome teacher, John
@stevemacias57684 жыл бұрын
Thanks John, Your explanation makes it easier to understand.
@michaeldausmann60664 жыл бұрын
Great vid. Can't wait for the sequel!
@bamboo_craft2 жыл бұрын
Best video on glazing chemistry I've found. Thanks so much!
@alexdevol47104 жыл бұрын
Amazing video. More clear and concise than what we got on my masters degree.
@sean...4 жыл бұрын
Excellent video John, thanks for taking the time to explain this, I finally get it :-)
@patspotpage2 жыл бұрын
Thank you for explaining this in a way I can understand!
@mdiaz9798 Жыл бұрын
Thank you soooo much! These videos are helping me learn so much.
@Repulseer3 жыл бұрын
Please have more! So many book and here I am finally understanding what UMF actually is
@waegele4 жыл бұрын
Thank you! I wish you came out with this a few years ago when I was still in school. I'm glad to see you back making videos and sharing some of your knowledge with us. Its extremely helpful.
@monkeymirth3 жыл бұрын
This is so clear and easy! Thank you!
@shanikayeomans24883 жыл бұрын
Thank you very much indeed. Looking forward to see your next demo.
@inklen4 жыл бұрын
Thanks for sharing your knowledge! :) Your video makes it very easy to follow.
@Lccastaldo4 жыл бұрын
You have clarified the Glaze Situation! We are working on Glaze Theory at college for a pottery class, and I knew there was something (a lot of something) missing from what they were trying to tell us! Thank you so much for taking the time to fill in the pits and valleys. Wonderful presentation!
@johnbrittpottery4 жыл бұрын
Glad to help. Gonna do one on Glazy soon...
@johnbrittpottery4 жыл бұрын
Let me know if I forgot something or can clarify something.
@gabiglaezer86854 жыл бұрын
Great video, thank you so much for sharing!
@simoneholmdahl84374 жыл бұрын
Thank you so much! So well explained!
@patriciafurr47713 жыл бұрын
Thanks so much for this video. Going to take me a long time to figure all this out!!! :)
@catherinedreux58333 жыл бұрын
Thank you John for sharing !
@rosievondollen6461 Жыл бұрын
Excellent excellent. Excellent this is absolutely wonderful and so generous of you to show us all of this I really really appreciate this. I am a chemist background and you explained it beautifully and I have so many Pottery questions. This is just wonderful. You did an excellent job. Thank you.!
@johnbrittpottery Жыл бұрын
Thx..I tried.
@ashrafmourad22012 ай бұрын
you are so great. Thank you so much
@incilakay23034 жыл бұрын
Just superrrrr. Love and thanks from Turkey, Bodrum. So openly teaching🤭🤗👍
@emilyreason34484 жыл бұрын
UMF, its better than nothing! Thanks Britt!
@ahmedbilal61484 жыл бұрын
Thank you Soo much for this course
@shirlicetrari24024 жыл бұрын
Muchas Gracias!!! 👏👏👏
@inesgres2 жыл бұрын
Thank you!!!!!! you are my new idol!!!!!!!
@natalyavishneva319910 ай бұрын
Thank you!
@merryarttoonesakamarysusan5594 жыл бұрын
Thank you soo much...
@realperson62014 жыл бұрын
Thank you!!!!!
@sophierubin20524 жыл бұрын
I have 3-4 books that explain UMF and none did nearly as good a job as you, John! I was pretty baffled before, and my understanding increased so much, so quickly here. So thank you! I have questions: 1) Can you elaborate on "glass former" and what that means? I understand that a flux melts at the temperatures we fire to, and that a refractory material does not (and therefore helps stabilize/keep things from running) but the term "glass former"... could I think of this as the kind of "base" that the other two materials work from? What would happen, for example, if you put together a flux and a refractory material but you left out the "glass former"? 2) You mentioned that a frit is a manufactured, pre-fired glaze... is it then ground up and sold as a power? Is it defined as a glaze because it is composed of a flux/refractory/glass former, but primarily used as a flux when people are making their own glazes? Thanks a million, this was seriously so fantastic for someone who can't actually go to graduate school in ceramics but would really like to understand more about what they're doing.
@johnbrittpottery3 жыл бұрын
Sorry didn't see this..Glass former is Silica and or Boron sometimes Phosphorous
@johnbrittpottery3 жыл бұрын
Frit contains flux, refractory, and glass former but is dominated by flux ..so people can add kaolin and Silica to have a glaze at any temperature
@julipolito77614 жыл бұрын
😮😮😮😮
@Manualdas1001Suculentas3 ай бұрын
Hello, here in Brazil we can´t find Gerstley borate anymore, can I use Gillespie borate instead? Thank you for your time, and for your classes. I really appreciat your book Mid-range glazes.
@johnbrittpottery3 ай бұрын
Yes Gillispie is a good sub...not the same but good now GB is gone. Bit more melts. Small amounts..it is great but some glazes have 50% so they run a bit.
@Manualdas1001Suculentas3 ай бұрын
@@johnbrittpottery Thank you very much ☺
@keesjoosten22824 жыл бұрын
Hello John, is it possible to ad the temperatures in celcius. I´m from the Netherlands, and we don´t use fahrenheit here. And an other question . I have bought a new electric kiln. Is it useful to put extra cones inside for temperature control? Greetings Kees from Holland.
@Neldidellavittoria4 жыл бұрын
I'm from Argentina and we use Celsius too. Here's a conversion of some temperatures he mentioned: 3100 = 1704 ; 2350 = 1288 (^10); 2232 = 1222 (^6); 1878 = 1025 (^05); 1650 = 899 (Na melting point),
@johnbrittpottery4 жыл бұрын
@@Neldidellavittoria Thank you.
@johnbrittpottery4 жыл бұрын
If you look in my book I have a cone chart with both. Sorry I didn't do that but forgot.
@nedludd86334 жыл бұрын
Hi Kees Electric kilns are very even in temperature and controllers are very accurate now so there is no point in putting in extra cones .
@johnbrittpottery4 жыл бұрын
@@nedludd8633 Not to be contrary, but not everyone has new kilns and kilns are routinely 1 cone off from top to bottom. Witness cones are the best thing to keep your work consistent. Thermocouples are inaccurate and degrade with use so the temperature cannot be relied upon. Types S is the best but many have type K and they are old. The kilns fires based on thermocouple so I only trust witness cones not thermocouples! JMO!
@organicallyhannah4 жыл бұрын
I don’t understand any of this/: i’ve only ever used already mixed glazed at the studio i use. Is there any extremely dumbed down glaze info available? I don’t have ingredients to make my own. I just wanna learn how to glaze properly
@johnbrittpottery4 жыл бұрын
Tons of stuff...free on Facebook, Ceramics Arts Daily...I gave DVD on my site , etc.
@____Ann____4 жыл бұрын
If you first watch the ceramic materials workshop videos the video of John will make more sense. The cmw lectures on yt are more open to beginners , so a good background to better be able to understand this video. I am a beginner too.
@@edouardbastarache7045 Nice to hear from you Edouard ! Long time. Hope you are well in Quebec!?
@ClownWhisper2 жыл бұрын
The one thing that puzzles me having a small background in chemistry I know how to convert a carbonate to an oxide it's simply heat. If you take cobalt or copper carbonate put it in a glass beaker put it on a hot plate and keep it moving with a glass stir rod crank up the heat it'll turn into copper oxide so this happens at not too high of a temperature as a matter of fact I don't know the exact temperature I'd have to look it up but if we're putting a carbonate in a glaze and it goes onto a piece and then goes into a kiln doesn't it automatically turn into an oxide? I mean what benefit is there to using a carbonate over an oxide in this case?
@johnbrittpottery2 жыл бұрын
Yes, you are right. But copper carbonate goes into the glaze easier, it is a fine powder.....sometimes copper oxide makes speckles. So depends on how they are processed. So another is zinc oxide...about 30 types...some very pure others with impurities. Some coarse. Some fine. So it makes a huge difference in your glazes.
@ClownWhisper2 жыл бұрын
@@johnbrittpottery you know I never even allowed my brain to go there how it actually physically incorporates with the glaze body now it makes sense to me. Thanks for clearing that up in my mind I've been pondering it for a long long time.
@ClownWhisper2 жыл бұрын
@@johnbrittpottery I think I'm going to ball mill some copper oxide and then do a microscopic comparison to see how fine I can get the copper oxide I'll post some pictures somewhere if I find anything interesting
@xolveria Жыл бұрын
this is so interesting i took Chem for nursing. so all this make sense. My question is. how do we know by a formula we are in the range of different firing cones. what numbers do i look at ? i understand the chemical part I need to know by number what are my ranges for them to be a cone ^6 7 etc.
@johnbrittpottery Жыл бұрын
You need the limits...(in the book in Overview section) for cone 6 (if I can remember) the alumina is between.0.2 and 0.5..and silica between 2.0 and 4.5...the boron is between 0.1 and 0.3. You can try googling cone 6 limits.
@johnbrittpottery Жыл бұрын
I have another video describing this...think it is called Understanding Stull...
@johnbrittpottery Жыл бұрын
Here is another....go down to numbers...digitalfire.com/glossary/limit+formula
@WhaleTank2 жыл бұрын
Does this mean the H20 is a Flux, or does that one not count?
@johnbrittpottery2 жыл бұрын
No, water evaporates...it doesn't count
@WhaleTank2 жыл бұрын
@@johnbrittpottery Yeah, that makes sense. Probably should have caught that one myself.. Thanks!
@Dally_Sparkles4 жыл бұрын
oooh.. alchemy.
@farmlife453326 күн бұрын
Why do they are have O’s next to them it means oxide right but what if your using an non oxide were would that go
@farmlife453326 күн бұрын
For example the best one I can think of is silicon carbide
@farmlife453326 күн бұрын
Which chemical formula is sic
@johnbrittpottery26 күн бұрын
Sodium carbonate is heated and the carbon dioxide goes off as a gas to yield sodium oxide.
@johnbrittpottery26 күн бұрын
@@farmlife4533 silicon carbide is heard. Burns off the carbon and yields silica