shane mickey on fri 5 mar 10
I have seen nitride bonded shelves used in wood kilns alot, they work well =
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nd the whole stress to difference in temp is hog wash. I could argue that p=
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tting them in a fiber or soft brick gas kiln causes more stress due to the =
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uick nature of the cool down. Wood kilns are notorious for taking days to c=
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ol. The advancer shelves do pose more of a risk due to their tight matrix, =
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ut usually when they have failed it is do to the owners fault. advancers le=
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t out in the rain or freshly washed then taken up in temperature to fast. I=
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have personally seen and know of many people using advancers and the chines=
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nitiride shelves used in soda kilns where they are sprayed directly with t=
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e sprayer at cone 9. Nothing happens. =3D
Now as to the durability of the shelves with slits. I have ordered and used=
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them exclusively. The best testing grounds i have seen them in is at penlan=
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school of crafts large salt kiln. They have warped over the last 5 years, =
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ut so do all shelves except advancers. I know of no failure in the kiln due=
=3D
to the cuts in the shelves. I have not witnessed any cracking from these cu=
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s and in private studio use i feel they hold up very well. FYI you can buy =
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hese shelves from any clay supplier but they area all the same to me. shop =
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round get the best price. shipping will kill you.
shane mickey kiln design services
/www.shanemickeypotterslife.blogspot.com/ =3D
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