Understanding Pottery Chapter 15 Electric Kilns Part 1
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- Опубліковано 20 чер 2020
- Welcome to Understanding Pottery, Chapter 15: Electric Kilns Part 1
This episode is focused on electric kilns with special emphasis on differences in the procedures used for firing compared to fuel-burning kilns. Electric kilns offer a number of advantages, but they also have shortcomings, and because of the apparent ease of operation, they can contribute to poor firing practices. We will talk about tips for avoiding problems and achieving better results.
The next topic in the series is Electric Kilns 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-ro...
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.
I love all of your videos! I am always blown away by how much knowledge is shared in each video and how clearly the information is conveyed!
That is awesome! We are happy you find the videos useful, please share the channel with your friends and fellow potters to help us grow our community!
What a great explanation for why someone should learn the technical aspects of ceramics... so creativity isn’t hindered! That’s so good. I love this channel and although I’m new to this, I’m learning so much so fast 🙏
Jake, that statement hit me as well! Phil was my first instructor in pottery about 15 years ago and I'm still learning from him today! Thanks for the comment and tell your friends and fellow potters.
i realize I'm kinda randomly asking but does anyone know of a good website to stream new tv shows online?
@Van Brecken i dunno I use Flixportal. Just google after it:) -imran
@Imran Holden thanks, signed up and it seems like a nice service =) Appreciate it !
@Van Brecken No problem =)
Thank you for the great education
And thank you for watching!
From India. What a lecture! So much information with crystal clear clarity and with foundation of scientific explanations. It gets embedded in your knowledge bank and can never forget. Thank you so much.
Thank you Gishwajit Ghoshal, we appreciate the encouragement and thank you for being part of our international community! Please spread the channel to your friends and fellow potters to help us grow our community.
Lots of love and thanks from Turkey. Super videoes ❤️❤️🌹🌹🤗🤗
Thank you for watching! Please share with your friends and potters. And thanks for you kind comments.
Do you all have show notes or transcripts for this series on electric kilns? I didn’t see them on your website.
Sorry no.
I'm confused about the topic of ageing elements. If the resistance is increasing, why is less heat produced? Low resistance wiring does not produce as much heat as high resistance wiring, so how does an ageing wire with increased resistance produce less heat. It seems to be contradictory.
The first time you fire your kiln, you create a layer of oxidation on the elements. You want the kiln empty so you don't have contaminants in the oxidation layer. This helps by providing a barrier to further oxidation of the elements. Every time you fire your kiln the elements expand when heated and contract when cooled. This results in tension between the the oxide layer and the base metal because they expand at slightly different rates. Cracks are created in the oxidation layer which expose the base metal, which then oxidizes, elongates the element and the diameter of the base metal core is reduced.
As the base metal core gets smaller and smaller, the resistance increases and the element runs hotter, however the reduced diameter of the core metal in the element causes an even greater reduction in the power potential. The net result is less radiant heat in the kiln and less heat transferred to the pottery stack.
I hope this helps, Thanks for the great question.
@@WashingtonStreetStudios That helps. The reduced diameter limits the amount of current passing through the wire. Thanks.
Great answer, thanks!