Understanding Pottery Chapter 20 Pottery Myths, Errors and Misconceptions Part 1
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- เผยแพร่เมื่อ 21 ส.ค. 2024
- Welcome to Understanding Pottery, Chapter 20: Pottery Myths, Errors and Misconceptions Part 1.
Many terms and theories have surfaced over the years in the field of ceramics, many with no basis in science or physics. We are going to explore many pottery related myths, errors and misconceptions over the next few episodes.
The next topic in the series is Pottery Myths, Errors and Misconceptions Part 2.
Understanding Pottery is a series in production by Washington Street Studios. The video series is a digital textbook that will take you through the entire ceramic process from the raw material through the finished ceramic pieces. There are five sections and twenty-six chapters planned in the series and they are:
Section I: The Pottery Making Sequence
Chapter 1: What is Clay?
Chapter 2: Clay Properties and Drying
Chapter 3: Bisque Firing
Chapter 4: Tips for Successful Glazing
Chapter 5: Pyrometric Cones
Chapter 6: Glaze Firing
Section II: Use of Raw Materials
Chapter 7: Chemistry for Potters
Chapter 8: Glaze Chemistry
Chapter 9: Oxides, Washes, Underglazes and Stains
Chapter 10: Geology for Potters
Chapter 11: Use of Local Materials
Section III: Kilns and Firings
Chapter 12: Atmospheric Firings
Chapter 13: Wood-Fired Kilns
Chapter 14: Gas-Fired Kilns
Chapter 15: Electric Kilns
Chapter 16: Raku Kilns
Section IV: Solving Problems
Chapter 17: Kiln Performance Problems
Chapter 18: Clay Body Defects
Chapter 19: Glaze Defects
Section V: Practical Applications
Chapter 20: Pottery Myths, Errors and Misconceptions
Chapter 21: Thixotropy, Quartz Inversions and Other Pottery Mysteries
Chapter 22: Pottery and Physics
Chapter 23: Pottery Figurin’ (Math)
Chapter 24: Personal Safety with Pottery
Chapter 25: Critiquing Your Own Pottery: Design Principles You Can Use
Chapter 26: Tips for Buying Used Pottery Equipment
Show notes, including handouts, can be found at www.hfclay.com...
The Potters’ Round Table is brought to you by Washington Street Studios, a community pottery studio, gallery, and pottery school located in Harpers Ferry / Bolivar, WV. We exist to provide ceramic artists an affordable, fully equipped studio space for aspiring, emerging and established artists to share their creative energy and knowledge in an environment designed to support the ceramic artist. If you want to learn more about Washington Street Studios, visit our website at www.hfclay.com/.
At Washington Street Studios, we believe the sharing of creative energy and knowledge will improve the quality of our art and increase the appreciation of art within our community. We are striving to create an environment where the arts are shared and appreciated. We want to grow as a family of artists and contribute to our community. This podcast is one of our steps to share our passion for the ceramic arts, creative energy and knowledge with other artists and art lovers.
We also created an audio version to expand our audience. If you are looking for the podcast of our show search for the ‘The Potters Round Table’ on your podcast platform of choice.
Phil is an amazing teacher! I love this channel, thanks so much for posting these videos ❤
Phil was an amazing teacher, he passed away last July! He will be missed but his legacy lives on in these videos.
Oh gosh 💔 What a loss for you guys. Many belated condolences from Copenhagen. Odd perhaps, but I feel genuinely very sad to learn that Phil has passed. He seems to have been a real gem of a person.
Indeed, how lucky we are to still be able to watch him give lectures here.
I am a production potter mostly stone ware clay body. I Use a Torch on most of my pieces on the wheel I do not use bats. I don't get S cracks because compression, compression, compression! Loved the video!
Yes, compression is the key. Thanks for watching and thanks for the encouragement!
Excellent - i've learnt so much from your lectures & podcasts.Thank you!
Thank you for watching and be sure to subscribe so you get notified for every new update! It's a really good idea to listen to the podcast after watching the video to help 'vitrify' the lesson in your mind! I really hope you enjoy the videos and please tell your friends and fellow artists!
I know Im kinda randomly asking but does anybody know of a good website to watch newly released tv shows online ?
I soo look forward to seeing these videos! Thanks so much!
Well Temily, we are happy that you are enjoying the videos! We really enjoy making them. We plan to release two every week until we run out of topics. If you have any ideas, let us know. And if you want to be a partner in creating this digital library, consider becoming a patron. Just go to www.patreon.com and search for The Potters Round Table.
Thank you for the great information 🙏
You are most welcome, keep watching!
Uneven drying can cause S-cracks, so when I have a piece with a thick bottom and thin sides because I want to trim a higher foot, I just hit only the bottom with a blowtorch for a moment. I give it a head start in drying.
I've not tried that approach, but it should work! Thanks for sharing!
Thanks for another great lecture! All the drawings and examples you give are great. It is the best source to understand science of the ceramics that is too often called magic. ;) I have a question about other pottery myth (or maybe it is not a myth). I've heard that many times and was curious what is your opinion on that. Some potters advice on errors with glazes is to run an empty kiln with higher temp then your glaze firings, to get rid of rest of other oxides and glaze ingredients that may be left in the kiln. I don't understand that idea. Could please share your opinion on that if its true and explain.
Hi Ania,
Thanks for watching our videos and for your question! I don't believe that, in general, there is any problem with glaze ingredients remaining in a kiln. Most of the ingredients that are used in glazes do not "evaporate'' or turn into gas to any significant amount when they are heated, so there is no residue that is left in a kiln.The only common exceptions to this might be soda ash (sodium carbonate) or salt (sodium chloride). When these are present in a kiln (either added to a gas or wood-fired kiln during a "soda" or salt firing, or as a glaze ingredient) that is fired to high temperatures, small amounts of these materials can remain in the kiln, and then become active again during the next firing. However, these "residues" don't really cause any problems with the glazes, in fact, they may actually enhance some of the glazes' appearance. Chemical impurities in clay are generally removed as gases during the bisque firings, and if not completely removed, then the removal is usually completed during the higher temperature glaze firings. Most common glaze problems and defects are due to other causes.
Phil
@@WashingtonStreetStudios Thank you for answering. :)
Hi, to join use "Magic Water": 1 gallon of water, 3 table spoons of liquid sodium silicate, 1 1/2 teaspoons of soda ash. Is this a better idea?
Magic Water is used by many potters, especially when the pots are a little on the dry side. If the clay is leather hard, ordinary slip works well for me.
I don't know if Phil ever wrote any books on glazes or pottery but if he did will someone please tell me where I can get them?
Sorry, Phil didn't finish his book before he passed. He did leave us the video series! I am so thankful that we finished!
I saw a video where the potter painted the entire mug handle along with the joints. Will water evaporate through the wax eventually before firing?
Thank you David. I've sent the question on to Phil and I will post his response. Did the potter paint the entire handle with wax? I just want to make sure I have the question right.
@@WashingtonStreetStudios Yes it was the entire handle.
With the vinegar, is it that vinegar won't evaporate ? maybee ?
Paul Hart, I wish I knew how to answer this question! Phil was the chemistry expert and he passed away last year in July.
Dennis
@@WashingtonStreetStudios Ah man, i'm genuinely sorry to hear that.