Jump to content
Sign in to follow this  
Malinda

What is the science behind blck coring and bloating in red clay foor tile industry?? how to eliminate this issues??

Recommended Posts

Black coring is caused when there is insufficient oxygen in the firing. Increased ventilation is needed to enable the carbon and sulphur to burn out of the clay and to prevent the iron in the clay body from fluxing. A long slow firing in oxidation is needed up to 900C,  especially since your tiles are thick, to allow gasses to escape and avoid reducing the iron in the clay. How you load your kiln is important too, stacking work makes it more difficult for the organics to burn off.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.