Jump to content
Sign in to follow this  
HAUKSBEE

Cracking Above The Foot Area...

Recommended Posts

I threw eight or so porcelain bowls the other day. Two of them developed cracks in the lower part. I wondered: why just two out of the eight? The clay was wedged up at the same time. The cracks look rather like S-cracks that occasionally happen at the bottom of vessels. But I've never seen them this high. Any thoughts on what causes this?

post-1746-12758680758637_thumb.jpg

post-1746-12758680758637_thumb.jpg

Share this post


Link to post
Share on other sites

I threw eight or so porcelain bowls the other day. Two of them developed cracks in the lower part. I wondered: why just two out of the eight? The clay was wedged up at the same time. The cracks look rather like S-cracks that occasionally happen at the bottom of vessels. But I've never seen them this high. Any thoughts on what causes this?

 

 

All cracking is caused by inconsistencies in drying, but the failure itself is most likely occurs at a point of inconsistent mixing in the body. All failures are caused by poor mixing, poor composition or both.

Share this post


Link to post
Share on other sites
All cracking is caused by inconsistencies in drying, but the failure itself is most likely occurs at a point of inconsistent mixing in the body. All failures are caused by poor mixing, poor composition or both.

 

 

OK. Admittedly, the wall above, and the floor below, were thinner and the area of cracks didn't get trimmed down as much as I would wish. Just thought I'd ask since I'd never seen cracking like that before. Thanks much.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×