I have 2 beautiful bowls that came out of the kiln several days ago.
Ceramic pot making noise.
If you do this it can actually make the pot explode so always be careful.
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For more about firing glass with pottery visit combining glass with pottery.
Every 15 mins to an hour they make a high pitched ping type of noise.
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The effect on the bottom picture is by using a raku setup with a crackle white glaze that cracks by the rapid cooling before entering the reduction smoke chamber.
I m not sure but it s possible that the ceramic material was relieving stress.
I am new to wheel thrown pottery.
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When you hear a pinging pot it typically isn t complete cause for alarm but instead it s a beginner s mistake that can happen.
I make sound fx for people to use in their projects.
The effect in the top picture was accomplished by melting and fusing glass on the pot.
The sound that s coming out of your pot is mostly due to boiling.
The odd thing is.
That is the material had many defects in it s structure like the ones described in this wiki page and the heat from the water gave the structure enough energy to relax and heal them i ve witnessed a ceramic cup that started to make bell like noises when i poured myself a tea in it an.
Inside these bubbles are water vapor which rises to the top and pops.